Wastewater Flashcards
What is the specific agent responsible for botulism food poisoning?
Clostridium botulinum
Clostridium botulinum produces a potent toxin that can cause severe illness.
What are the common vehicles for botulism food poisoning?
Improperly processed canned and bottled foods, other foods
Foods that are not properly preserved can harbor the botulinum toxin.
What are the symptoms of botulism food poisoning?
Gastrointestinal pain, diarrhea or constipation, prostration, difficulty in swallowing, double vision, difficulty in respiration
Symptoms can vary in severity and presentation.
What is the incubation period for botulism food poisoning?
2 hr-8 days, usually 12-36 hr
The onset of symptoms can be quite variable.
What preventive measure can be taken against botulism food poisoning?
Boil home canned nonacid food for 5 min; thoroughly cook meats, fish
Proper cooking and food preservation techniques are crucial.
What bacteria is responsible for Staphylococcus food poisoning?
Staphylococcus aureus
This bacterium produces an enterotoxin that causes food poisoning.
What are the common vehicles for Staphylococcus food poisoning?
Contaminated custard pastries, cooked or processed meats, poultry, dairy products
Foods that are improperly handled or stored can become contaminated.
What are the symptoms of Staphylococcus food poisoning?
Acute nausea, vomiting, prostration; diarrhea, abdominal cramps
Symptoms are often sudden and can lead to quick recovery.
What is the incubation period for Staphylococcus food poisoning?
1-6 hr or longer, average 2-4 hr
Symptoms can appear rapidly after consumption of contaminated food.
What preventive measures can be taken to avoid Staphylococcus food poisoning?
Refrigerate promptly prepared food below 45°F; discard leftover food; educate food handlers
Proper food storage and hygiene are key to prevention.
What is the specific agent for Clostridium perfringens food poisoning?
Clostridium perfringens
This bacterium is a spore former that can survive cooking.
What are the common vehicles for Clostridium perfringens food poisoning?
Contaminated food, inadequately heated meats, improperly held or cooled food
Foods that are not properly cooked or stored can lead to infection.
What are the symptoms of Clostridium perfringens food poisoning?
Sudden abdominal pain, diarrhea, nausea
Symptoms are caused by the toxin released in the intestine.
What is the incubation period for Clostridium perfringens food poisoning?
8-22 hr, usually 10-12 hr
Symptoms typically develop after a short period following ingestion.
What preventive measures can be taken against Clostridium perfringens food poisoning?
Cook foods thoroughly, cool rapidly, refrigerate promptly; reheat to 165°F before serving
Proper cooking and cooling techniques are crucial for safety.
What is the specific agent for Bacillus cereus food poisoning (diarrheal type)?
Bacillus cereus
This bacterium produces heat-labile toxins that can cause gastrointestinal illness.
What are the common vehicles for Bacillus cereus food poisoning (diarrheal type)?
Inadequately refrigerated cooked foods
Foods that are not stored properly can become contaminated with spores.
What are the symptoms of Bacillus cereus food poisoning (diarrheal type)?
Diarrhea, cramps; vomiting sometimes
Symptoms can vary in intensity and duration.
What is the incubation period for Bacillus cereus food poisoning (diarrheal type)?
6-16 hr
Symptoms can appear within hours after consuming contaminated food.
What preventive measures can be taken against Bacillus cereus food poisoning (diarrheal type)?
Prevent food contamination; cool food rapidly in shallow containers
Proper food handling is essential to avoid illness.
What is the specific agent for Bacillus cereus food poisoning (vomiting type)?
Bacillus cereus
This type produces heat-stable toxins.
What are the common vehicles for Bacillus cereus food poisoning (vomiting type)?
Boiled and fried rice
Improperly stored rice dishes can lead to this type of food poisoning.
What are the symptoms of Bacillus cereus food poisoning (vomiting type)?
Diarrhea, cramps; vomiting sometimes
Symptoms can vary, but vomiting is a common feature.
What is the incubation period for Bacillus cereus food poisoning (vomiting type)?
1-6 hr
Symptoms can appear rapidly after consuming contaminated food.
What preventive measures can be taken against Bacillus cereus food poisoning (vomiting type)?
Same as diarrhea; some spores may survive pasteurization
Maintaining proper food storage and cooking practices is important.
What is the specific agent responsible for Salmonellosis?
Salmonella typhimurium, S. newport, S. enteritidis, S. montevideo, others
Various Salmonella strains can cause this infection.
What are the common vehicles for Salmonellosis?
Contaminated sliced cooked meat, salads, uncooked meats, eggs
Foods that are not cooked properly can harbor Salmonella.
What are the symptoms of Salmonellosis?
Abdominal pain, diarrhea, chills, fever, vomiting, nausea
Symptoms can persist for several days.
What is the incubation period for Salmonellosis?
6-48 hr, usually 12-24 hr
Symptoms can develop within a day after exposure.
What preventive measures can be taken against Salmonellosis?
Protect food storage, thoroughly cook food, eliminate rodents
Proper food handling and sanitation are essential.
What is the specific agent responsible for Typhoid fever?
Salmonella typhi
This bacterium is responsible for a serious systemic infection.
What are the common vehicles for Typhoid fever?
Contaminated water, milk and milk products, shellfish, foods
Typhoid fever is often transmitted through contaminated food and water.
What are the symptoms of Typhoid fever?
General infection characterized by continued fever, rose spots, diarrheal disturbances
Symptoms can be severe and require medical attention.
What is the incubation period for Typhoid fever?
Average 14 days, usually 7-21 days
The onset of symptoms can take time following exposure.
What preventive measures can be taken against Typhoid fever?
Protect and purify water supply, pasteurize milk, educate food-handlers
Sanitary practices are essential for prevention.
What is the specific agent responsible for Paratyphoid fever?
Salmonella paratyphi A, S. schottmulleri B, S. hirschfeldii C
Similar to Typhoid fever, but typically less severe.
What are the common vehicles for Paratyphoid fever?
Contaminated water, milk and milk products, shellfish, foods
Transmission is similar to that of Typhoid fever.
What are the symptoms of Paratyphoid fever?
General infection with continued fever, diarrheal disturbances, sometimes rose spots
Symptoms can mimic those of Typhoid fever.
What is the incubation period for Paratyphoid fever?
1-10 days for gastroenteritis; 1-3 weeks for enteric fever
The onset can vary based on the type of infection.
What preventive measures can be taken against Paratyphoid fever?
Similar preventive measures as in Typhoid fever and Salmonellosis
Maintaining hygiene and sanitation is crucial.
What is the specific agent responsible for Shigellosis?
Genus Shigella, i.e., flexneri, sonnei, boydii, dysenteriae
Shigella bacteria are responsible for this gastrointestinal infection.
What are the common vehicles for Shigellosis?
Contaminated water or foods, milk and milk products, flies, person-to-person
Transmission can occur through direct contact or contaminated food.
What are the symptoms of Shigellosis?
Acute onset with diarrhea, fever, tenesmus, bloody stools
The infection can lead to severe gastrointestinal symptoms.
What is the incubation period for Shigellosis?
1-7 days, usually less than 4 days
Symptoms can develop relatively quickly after exposure.
What preventive measures can be taken against Shigellosis?
Food, water, sewage sanitation, personal hygiene
Ensuring clean water and food handling can help prevent this infection.
What is the specific agent responsible for Cholera?
Vibrio cholerae
This bacterium causes severe diarrhea and dehydration.
What are the common vehicles for Cholera?
Contaminated water, raw foods, shellfish
Cholera is primarily transmitted through contaminated water sources.
What are the symptoms of Cholera?
Diarrhea, rice-water stools, vomiting, thirst, pain, coma
Cholera can lead to severe dehydration and is a medical emergency.
What is the incubation period for Cholera?
A few hours-5 days, usually 3 days
Symptoms can appear rapidly following exposure.
What preventive measures can be taken against Cholera?
Similar to Typhoid; quarantine, isolate patients
Public health measures are essential to control outbreaks.
What is the specific agent responsible for Melioidosis?
Pseudomonas pseudomallei
This bacterium can cause serious infections, particularly in immunocompromised individuals.
What are the common vehicles for Melioidosis?
Contact with or ingestion of contaminated excreta, soil, or water
The bacterium is often found in soil and water.
What are the symptoms of Melioidosis?
Acute diarrhea, vomiting, high fever, delirium, mania
Symptoms can be severe and require immediate medical attention.
What is the incubation period for Melioidosis?
Less than 2 days or longer
The onset of symptoms can vary significantly.
What preventive measures can be taken against Melioidosis?
Destroy rats; protect food; thoroughly cook food
Maintaining hygiene and sanitation can help prevent infection.
What is the specific agent responsible for Brucellosis (Undulant fever)?
Brucella melitensis (goat), Br. abortus (cow), Br. suis (pig)
Brucellosis is caused by various species of Brucella bacteria.
What are the common vehicles for Brucellosis?
Raw milk from infected animals; contact with infected animals
Unpasteurized dairy products are a common source of infection.
What are the symptoms of Brucellosis?
Insidious onset, irregular fever, sweating, chills, joint and muscle pain
Symptoms can be mild and go unnoticed for some time.
What is the incubation period for Brucellosis?
5-21 days or longer
The onset of symptoms can take time following exposure.
What preventive measures can be taken against Brucellosis?
Pasteurize all milk; eliminate infected animals; handle carcasses with care
Proper food handling and sanitation are essential.
What is the specific agent responsible for Streptococcal infections?
Streptococcus pyogenes
This bacterium is responsible for various infections, including strep throat.
What are the common vehicles for Streptococcal infections?
Contaminated salads or milk products
Foods that are improperly handled can harbor the bacteria.
What are the symptoms of Streptococcal infections?
Sore throat and fever, sudden in onset, vomiting
Symptoms can develop quickly and may require antibiotic treatment.
What is the incubation period for Streptococcal infections?
1-3 days
Symptoms typically develop within a few days after exposure.
What preventive measures can be taken against Streptococcal infections?
Pasteurize all milk; inspect contacts
Ensuring proper food safety practices can help prevent infection.
What is the specific agent responsible for Diphtheria?
Corynebacterium diphtheriae
This bacterium causes a serious respiratory infection.
What are the common vehicles for Diphtheria?
Contact and milk or milk products
The infection can spread through contaminated food or direct contact.
What are the symptoms of Diphtheria?
Acute febrile infection of tonsils, throat, and nose
Symptoms can include difficulty breathing and swallowing.
What is the incubation period for Diphtheria?
2-5 days or longer
The onset of symptoms can vary following exposure.
What preventive measures can be taken against Diphtheria?
Pasteurize all milk; disinfect utensils; immunize
Vaccination is a key preventive measure for diphtheria.
What is the specific agent responsible for Tuberculosis?
Mycobacterium tuberculosis (hominis and bovis)
Tuberculosis is a serious infectious disease primarily affecting the lungs.
What are the common vehicles for Tuberculosis?
Contact, eating and drinking utensils, food, and milk
The bacteria can be transmitted through respiratory droplets and contaminated food.
What are the symptoms of Tuberculosis?
Cough, fever, fatigue, pleurisy
Symptoms can develop gradually and may be severe.
What is the incubation period for Tuberculosis?
4-6 weeks
The onset of symptoms can take several weeks after exposure.
What preventive measures can be taken against Tuberculosis?
Pasteurize all milk; eradicate TB from cattle; skin test
Monitoring and vaccination can help control the spread of tuberculosis.
What is the specific agent responsible for Tularemia (Rabbit Fever)?
Pasteurella tularensis
This bacterium can cause severe illness from contact with infected animals.
What are the common vehicles for Tularemia?
Meat of infected rabbit, contaminated water, handling wild animals
Proper cooking and hygiene can help prevent infection.
What are the symptoms of Tularemia?
Sudden onset with pains and fever, prostration
Symptoms can be severe and require medical attention.
What is the incubation period for Tularemia?
1-10 days, average of 3
The onset of symptoms can vary based on the mode of transmission.
What preventive measures can be taken against Tularemia?
Thoroughly cook meat of wild rabbits; purify drinking water
Ensuring proper food handling and cooking can help prevent infection.
What is the specific agent responsible for Campylobacter enteritis?
Campylobacter jejuni
This bacterium is a common cause of foodborne illness.
What are the common vehicles for Campylobacter enteritis?
Undercooked beef, chicken, raw milk, contaminated water
Proper cooking and handling of food are essential to prevent this infection.
What are the symptoms of Campylobacter enteritis?
Watery diarrhea, abdominal pain, fever, chills, nausea, vomiting
Symptoms can vary in severity and duration.
What is the incubation period for Campylobacter enteritis?
1-10 days, average 2-5 days
Symptoms can develop after a variable period following exposure.
What preventive measures can be taken against Campylobacter enteritis?
Thoroughly cook chicken and pork; treat water; prevent cross-contamination
Proper cooking and food safety practices are critical.
What is the specific agent responsible for Vibrio parahaemolyticus gastroenteritis?
Vibrio parahaemolyticus
This bacterium is often associated with seafood.
What are the common vehicles for Vibrio parahaemolyticus gastroenteritis?
Raw seafoods or inadequately cooked seafoods
Contaminated seafood can lead to this type of gastroenteritis.
What are the symptoms of Vibrio parahaemolyticus gastroenteritis?
Nausea, headache, chills, fever, vomiting, severe abdominal cramps, watery diarrhea
Symptoms can appear quickly after consuming contaminated seafood.
What is the incubation period for Vibrio parahaemolyticus gastroenteritis?
2-48 hr, usually 12-24 hr
Symptoms can develop rapidly after exposure.
What preventive measures can be taken against Vibrio parahaemolyticus gastroenteritis?
Refrigerate prepared seafoods promptly if not immediately served
Proper storage of seafood is critical to prevent illness.
What is the specific agent responsible for Traveler’s diarrhea (Diarrhea enteropathogenic)?
Enteropathogenic Escherichia coli
This strain of E. coli is often associated with travel-related gastrointestinal illness.
What are the common vehicles for Traveler’s diarrhea?
Food, water, and fomites contaminated with feces
Contaminated food and water are primary sources of infection.
What are the symptoms of Traveler’s diarrhea?
Fever, mucoid, occasionally bloody diarrhea; or watery diarrhea, cramps, acidosis, dehydration
Symptoms can vary in severity and may require medical attention.
What is the incubation period for Traveler’s diarrhea?
12-72 hr
Symptoms can develop within a few days after exposure.
What preventive measures can be taken against Traveler’s diarrhea?
See Typhoid; scrupulous hygiene and formula sanitation in hospital nursery
Maintaining cleanliness and proper food handling is crucial.
What is the specific agent responsible for Yersiniosis?
Yersinia enterocolitica, Yersinia pseudotuberculosis
These bacteria can cause gastrointestinal illness, particularly in children.
What are the common vehicles for Yersiniosis?
Raw milk and milk products, seafoods, raw and rare meats, contaminated water
Proper cooking and pasteurization are essential for prevention.
What are the symptoms of Yersiniosis?
Diarrhea, cramps, fever, headache, vomiting, skin rash
Symptoms can mimic appendicitis in some cases.
What is the incubation period for Yersiniosis?
3-7 days, usually 2-3 days
Symptoms typically develop within a few days after exposure.
What preventive measures can be taken against Yersiniosis?
Sanitary disposal of feces; safe water; pasteurize milk; food sanitation
Ensuring proper food handling and hygiene is critical.
What is the specific agent responsible for Listeriosis?
Listeria monocytogenes
This bacterium can cause serious illness, particularly in pregnant women and immunocompromised individuals.
What are the common vehicles for Listeriosis?
Raw milk, contaminated pasteurized milk and milk products, contaminated vegetables
Listeria can survive in refrigerated foods.
What are the symptoms of Listeriosis?
Fever, headache, nausea, vomiting, meningeal symptoms
Symptoms can be severe and require immediate medical attention.
What is the incubation period for Listeriosis?
Probably a few days-3 weeks
The onset of symptoms can vary significantly.
What preventive measures can be taken against Listeriosis?
Avoid contact with infected persons and raw milk and meats
Proper food handling and hygiene are crucial.
What is the specific agent responsible for Vibrio vulnificus gastroenteritis?
Vibrio vulnificus
This bacterium is associated with seafood and can cause serious illness.
What are the common vehicles for Vibrio vulnificus gastroenteritis?
Raw or lightly cooked seafood, i.e., oysters
Contaminated seafood can lead to severe gastrointestinal illness.
What are the symptoms of Vibrio vulnificus gastroenteritis?
Fever, chills, vomiting, nausea, diarrhea
Symptoms can develop quickly after consuming contaminated seafood.
What is the incubation period for Vibrio vulnificus gastroenteritis?
16 hr
Symptoms can appear rapidly following exposure.
What preventive measures can be taken against Vibrio vulnificus gastroenteritis?
Same as Vibrio parahaemolyticus gastroenteritis
Proper seafood handling and cooking practices are essential.
What is the specific agent responsible for Q Fever?
Coxiella burneti
This bacterium is often associated with livestock and can cause severe illness.
What are the common vehicles for Q Fever?
Raw cow and goat milk; dust and aerosols from infected animals
Transmission can occur through inhalation or ingestion.
What are the symptoms of Q Fever?
Heavy perspiration and chills, headache, malaise
Symptoms can resemble those of the flu.
What is the incubation period for Q Fever?
2-3 weeks, average 20 days
The onset of symptoms can take several weeks after exposure.
What preventive measures can be taken against Q Fever?
Pasteurize milk and dairy products; eliminate infected animal reservoir
Ensuring proper handling of livestock and dairy products is essential.
What is the specific agent responsible for Choriomeningitis?
Lymphocytic choriomeningitis virus
This virus is transmitted primarily by house mice.
What are the common vehicles for Choriomeningitis?
Contaminated food
Food contaminated with mouse droppings can lead to infection.
What are the symptoms of Choriomeningitis?
Fever, severe headache, stiff neck, vomiting
Symptoms can be severe and may require medical attention.
What is the incubation period for Choriomeningitis?
8-13 days
Symptoms can develop within a couple of weeks after exposure.
What preventive measures can be taken against Choriomeningitis?
Eliminate or reduce mice; general cleanliness
Maintaining proper hygiene can help prevent this infection.
What is the specific agent responsible for Infectious hepatitis?
Hepatitis A virus
This virus can cause liver inflammation and is transmitted through fecal-oral routes.
What are the common vehicles for Infectious hepatitis?
Water, food, milk, shellfish, contacts
Contaminated food and water are primary sources of transmission.
What are the symptoms of Infectious hepatitis?
Fever, nausea, loss of appetite; possibly vomiting, jaundice
Symptoms can vary in severity and may require medical attention.
What is the incubation period for Infectious hepatitis?
10-50 days, average 30-35 days
The onset of symptoms can take time following exposure.
What preventive measures can be taken against Infectious hepatitis?
Sanitary sewage disposal, food sanitation, personal hygiene
Ensuring proper sanitation is crucial to prevent the spread of the virus.
What is the specific agent responsible for viral gastroenteritis?
Rotaviruses, Norwalk agent, echo and coxsackie-viruses, and others
Various viruses can cause gastroenteritis with similar symptoms.
What are the common vehicles for viral gastroenteritis?
Water, food including milk, possibly fecal-oral route
Contaminated food and water are primary sources of infection.
What are the symptoms of viral gastroenteritis?
Nausea, vomiting, diarrhea, abdominal pain, low fever
Symptoms can vary in severity and duration.
What is the incubation period for viral gastroenteritis?
24-72 hr
Symptoms can develop within a few days after exposure.
What preventive measures can be taken against viral gastroenteritis?
Same as Hepatitis A
Proper sanitation and hygiene are essential for prevention.
What is the specific agent responsible for Amebiasis?
Entamoeba histolytica
This protozoan parasite can cause severe gastrointestinal illness.
What are the common vehicles for Amebiasis?
Cysts, contaminated water, foods, raw vegetables
Contaminated food and water are primary sources of transmission.
What are the symptoms of Amebiasis?
Diarrhea, constipation, loss of appetite, abdominal discomfort
Symptoms can vary in severity and may include bloody stools.
What is the incubation period for Amebiasis?
5 days or longer, average 2-4 weeks
Symptoms can take time to develop following exposure.
What preventive measures can be taken against Amebiasis?
Same as Shigellosis; boil water or coagulate, filter
Ensuring proper sanitation and water treatment is crucial.
What is the specific agent responsible for Giardiasis?
Giardia lamblia
This protozoan parasite is a common cause of gastrointestinal illness.
What are the common vehicles for Giardiasis?
Cysts, contaminated water, food, raw fruits
Contaminated food and water are primary sources of transmission.
What are the symptoms of Giardiasis?
Prolonged diarrhea, abdominal cramps, severe weight loss, fatigue
Symptoms can persist for weeks if untreated.
What is the incubation period for Giardiasis?
6-22 days, average 9 days
Symptoms can take time to develop following exposure.
What preventive measures can be taken against Giardiasis?
Same as Amebiasis
Proper sanitation and hygiene are essential for prevention.
What is the specific agent responsible for Cryptosporidiosis?
Cryptosporidium spp
This protozoan parasite can cause gastrointestinal illness.
What are the common vehicles for Cryptosporidiosis?
Contaminated water, food, fecal-oral route
Contaminated food and water are primary sources of transmission.
What are the symptoms of Cryptosporidiosis?
Mild flu-like symptoms, diarrhea, vomiting, nausea
Symptoms can vary in severity and may resolve without treatment.
What is the incubation period for Cryptosporidiosis?
2-21 days, average 2-10 days
Symptoms can take time to develop following exposure.
What preventive measures can be taken against Cryptosporidiosis?
Avoid untreated water, unpasteurized milk, salads in areas of poor hygiene
Proper sanitation and hygiene are essential for prevention.
What is the specific agent responsible for Balantidiasis?
Balantidium coli
This protozoan parasite is associated with swine and can cause gastrointestinal illness.
What are the common vehicles for Balantidiasis?
Ingestion of cysts in infected feces
Contaminated food or water can lead to infection.
What are the symptoms of Balantidiasis?
Mild diarrhea, nausea, dysentery, vomiting
Symptoms can vary in severity and may include bloody stools.
What is the incubation period for Balantidiasis?
Unknown, a few days
The onset of symptoms can vary significantly.
What preventive measures can be taken against Balantidiasis?
Same as Cryptosporidiosis and Shigellosis
Proper sanitation and hygiene are essential for prevention.
What is the specific agent responsible for Leptospirosis (Weil’s disease)?
Leptospira icterohaemorrhagiae, L. hebdomadis, L. canicola, L. pomona, others
This bacterium can cause severe illness, particularly in individuals exposed to contaminated water.
What are the common vehicles for Leptospirosis?
Food, water, soil contaminated with excreta or urine of infected animals
Transmission can occur through direct contact with contaminated environments.
What are the symptoms of Leptospirosis?
Fever, rigors, headaches, nausea, muscular pains, vomiting
Symptoms can vary in severity and may include jaundice.
What is the incubation period for Leptospirosis?
4-19 days, average 9 to 10 days
Symptoms can take time to develop following exposure.
What preventive measures can be taken against Leptospirosis?
Destroy rats; avoid contact with contaminated water
Maintaining hygiene and sanitation can help prevent infection.
What is the causative agent of Leptospirosis?
Leptospira icterohaemorrhagiae, L. hebdomadis, L. canicola, L. pomona, others
Leptospira is a genus of bacteria that causes leptospirosis, a disease transmitted through contaminated water.
What are the primary sources of contamination for Leptospirosis?
Urine and feces of rats, swine, dogs, cats, mice, foxes, sheep
These animals are common reservoirs for the bacteria causing leptospirosis.
List the common symptoms of Leptospirosis.
- Fever
- Rigors
- Headaches
- Nausea
- Muscular pains
- Vomiting
- Thirst
- Prostration
- Jaundice
Symptoms typically appear after infection and can vary in severity.
What is the incubation period for Leptospirosis?
4-19 days, average 9 to 10 days
The incubation period is the time from exposure to the onset of symptoms.
What preventive measures can be taken against Leptospirosis?
- Destroy rats
- Protect food
- Avoid polluted water
- Treat abrasions of hands and arms
- Disinfect utensils
- Treat infected dogs
These measures can help reduce the risk of infection.
What is the causative agent of Trichinosis?
Trichinella spiralis
This is a parasitic roundworm that causes trichinosis, primarily through consumption of undercooked meat.
What are the primary sources of infection for Trichinosis?
Infected pork and pork products, bear, and wild boar meat
Trichinosis is often associated with undercooked or raw meat from infected animals.
List common symptoms of Trichinosis.
- Nausea
- Vomiting
- Diarrhea
- Muscle pain
- Swelling of face and eyelids
- Difficulty in swallowing
Symptoms can vary based on the severity of the infection.
What is the incubation period for Trichinosis?
2-28 days, usually 9 days
The incubation period can vary significantly depending on the amount of larvae ingested.
How can Trichinosis be prevented?
- Thoroughly cook pork (150°F)
- Store meat 20 days at 5°F or 10 days at 10°F
- Destroy rats
- Feed hogs boiled garbage
Proper cooking and food handling can prevent infection.
What is Schistosomiasis commonly known as?
Bilharziasis
Schistosomiasis is a disease caused by parasitic flatworms known as schistosomes.
List the species of Schistosoma that cause Schistosomiasis.
- Schistosoma haematobium
- S. mansoni
- S. japonicum
- S. intercalatum
Different species can cause varying forms of the disease.
What are common sources of infection for Schistosomiasis?
Cercariae-infested drinking and bathing water (lakes and coastal sea waters)
Schistosomiasis is often contracted through exposure to contaminated water.
List common symptoms of Schistosomiasis.
- Dysenteric or urinary symptoms
- Rigors
- Itching on skin
- Dermatitis
Symptoms can persist for years if untreated and may vary based on the species of schistosome.
What is the incubation period for Schistosomiasis?
4-6 weeks or longer
The time from infection to symptom onset can be lengthy.
What preventive measures can be taken against Schistosomiasis?
- Avoid infested water for drinking or bathing
- Boil water
- Use chemical treatments for water
These measures can help reduce the risk of contracting the disease.
What is the causative agent of Ascariasis?
Ascaris lumbricoides
This is a large intestinal roundworm that infects humans.
What are common sources of infection for Ascariasis?
Contaminated food, water; sewage
Ascariasis is often spread through poor sanitation and hygiene practices.
List common symptoms of Ascariasis.
- Worm in stool
- Abdominal pain
- Skin rash
- Protuberant abdomen
- Nausea
- Large appetite
Symptoms can vary based on the extent of the infestation.
What is the incubation period for Ascariasis?
About 2 months
Symptoms may not appear until several weeks after infection.
How can Ascariasis be prevented?
- Personal hygiene
- Sanitation
- Boil drinking water in endemic areas
- Sanitary excreta disposal
Good hygiene and sanitation practices are key to prevention.
What is Echinococcosis also known as?
Hydatidosis
Echinococcosis is caused by the Echinococcus genus of tapeworms.
What are the primary sources of infection for Echinococcosis?
Contaminated food and drink; hand to mouth; contact with infected dogs
Echinococcosis is commonly contracted through contact with infected animals.
List common symptoms of Echinococcosis.
Cysts in tissues: liver, lung, kidney, pelvis; may give no symptoms, may cause death
Symptoms may not manifest until significant cysts form.
What is the incubation period for Echinococcosis?
Variable, months to several years
The disease can remain asymptomatic for a long time.
How can Echinococcosis be prevented?
- Keep dogs out of the abattoir
- Mass treatment of dogs
- Educate children and adults about risks
Preventative measures focus on reducing human-dog contact and treating infected animals.
What is the causative agent of Taeniasis?
Taenia solium (pork tapeworm), Taenia saginata (beef tapeworm)
Taeniasis is caused by two different species of tapeworms depending on the type of meat consumed.
What are common sources of infection for Taeniasis?
Infected meats eaten raw, food contaminated with feces of man, rats, or mice
Consuming undercooked or contaminated meat is a primary risk factor.
List common symptoms of Taeniasis.
- Abdominal pain
- Diarrhea
- Convulsions
- Insomnia
- Excessive appetite
Symptoms may vary based on the burden of the infection.
What is the incubation period for Taeniasis?
8-10 weeks
Symptoms may take several weeks to develop after infection.
How can Taeniasis be prevented?
- Thoroughly cook meat
- Control flies
- Properly dispose of excreta
- Food handler hygiene
Proper food handling and cooking practices are essential for prevention.
What is the causative agent of Fish Tapeworm infection?
Diphyllobothrium latum
This is a broad tapeworm that can infect humans through raw or undercooked fish.
What are common sources of infection for Fish Tapeworm?
Infected freshwater fish eaten raw
Consuming raw or undercooked fish is the main transmission route.
List common symptoms of Fish Tapeworm infection.
- Abdominal pain
- Loss of weight
- Weakness
- Anemia
Symptoms can be related to nutrient absorption issues.
What is the incubation period for Fish Tapeworm infection?
3-6 weeks
Symptoms may take weeks to develop after consumption of infected fish.
How can Fish Tapeworm infection be prevented?
- Thoroughly cook fish
- Proper excreta disposal
Cooking fish properly is critical to prevent infection.
What is the causative agent of Dracontiasis?
Dracunculus medinensis
This nematode causes Guinea worm disease, primarily through contaminated water.
What are common sources of infection for Dracontiasis?
Water contaminated with copepods-Cyclops; larvae from infected persons
Infection occurs through drinking contaminated water.
List common symptoms of Dracontiasis.
- Blistering of feet
- Legs and burning and itching of skin
- Fever
- Nausea
- Vomiting
- Diarrhea
- Worms from skin
Symptoms typically occur as the worm emerges from the body.
What is the incubation period for Dracontiasis?
About 12 months
The time from infection to symptom onset can be quite long.
How can Dracontiasis be prevented?
- Use only filtered or boiled water in endemic areas
- Treat water from unsafe sources
Safe water practices are essential for prevention.
What is the causative agent of Paragonimiasis?
Paragonimus ringeri, P. westermani, P. kellicotti
These are lung flukes that can infect humans through contaminated food or water.
What are common sources of infection for Paragonimiasis?
Contaminated water, freshwater crabs or crayfish
Consuming raw or undercooked crabs or crayfish is a risk factor.
List common symptoms of Paragonimiasis.
- Chronic cough
- Clubbed fingers
- Dull pains
- Diarrhea
Symptoms may resemble chronic respiratory conditions.
What is the incubation period for Paragonimiasis?
Variable
The time between infection and symptoms can vary significantly.
How can Paragonimiasis be prevented?
- Boil drinking water in endemic areas
- Thoroughly cook freshwater crabs and crayfish
Proper cooking and water treatment are key to prevention.
What is the causative agent of Clonorchiasis?
C. sinensis, Opisthorchis felineus
These liver flukes infect humans primarily through contaminated fish.
What are common sources of infection for Clonorchiasis?
Contaminated freshwater
Ingesting contaminated fish is the primary route of infection.
List common symptoms of Clonorchiasis.
- Chronic diarrhea
- Night blindness
Symptoms can reflect chronic liver disease.
What is the incubation period for Clonorchiasis?
Variable
Symptoms may take time to develop after infection.
How can Clonorchiasis be prevented?
- Boil drinking water in endemic areas
- Thoroughly cook fish
Proper cooking and sanitation practices are essential.
What is the causative agent of Fascioliasis?
Fasciola hepatica
This liver fluke primarily affects sheep but can also infect humans.
What are common sources of infection for Fascioliasis?
Sheep liver eaten raw
Consuming undercooked liver from infected animals can lead to infection.
List common symptoms of Fascioliasis.
- Irregular fever
- Pain
- Diarrhea
Symptoms can vary based on the severity of the infection.
What is the incubation period for Fascioliasis?
Several months
Symptoms may take a long time to appear after infection.
How can Fascioliasis be prevented?
- Thoroughly cook sheep liver
Proper cooking is essential to avoid infection.
What is the causative agent of Trichuriasis?
Trichuris trichiura
This whipworm infects the large intestine of humans.
What are common sources of infection for Trichuriasis?
Contaminated food, soil
Poor sanitation and hygiene practices are key risk factors.
List common symptoms of Trichuriasis.
No special symptoms, possibly stomach pain
Many infections can be asymptomatic.
What is the incubation period for Trichuriasis?
Long and indefinite
Symptoms may not appear for a long time after infection.
How can Trichuriasis be prevented?
- Sanitation
- Boil water
- Cook food well
- Properly dispose of feces
Good hygiene and sanitation practices are crucial.
What is the causative agent of Oxyuriasis?
Oxyuris vermicularis or Enterobius vermicularis
This pinworm primarily infects children.
What are common sources of infection for Oxyuriasis?
Fingers, ova-laden dust, contaminated food, water, sewage; clothing, bedding
Transmission often occurs through contaminated hands or surfaces.
List common symptoms of Oxyuriasis.
- Nasal and anal itching
- Diarrhea
Symptoms are often more pronounced at night.
What is the incubation period for Oxyuriasis?
3-6 weeks; months
Symptoms can take weeks to manifest.
How can Oxyuriasis be prevented?
- Wash hands after defecation
- Keep fingernails short
- Sleep in cotton underwear
- Sanitation
Good hygiene practices can significantly reduce risk.
What is the causative agent of Fasciolopsiasis?
Fasciolopsis buski
This intestinal fluke primarily affects humans and animals.
What are common sources of infection for Fasciolopsiasis?
Raw freshwater plants, water, food
Consuming contaminated plants or water is a primary risk factor.
List common symptoms of Fasciolopsiasis.
- Stomach pain
- Diarrhea
- Greenish stools
- Constipation
- Edema
Symptoms can vary based on the severity of the infection.
What is the incubation period for Fasciolopsiasis?
6-8 weeks
Symptoms may take time to develop after consumption.
How can Fasciolopsiasis be prevented?
- Cook or dip in boiling water roots of lotus, bamboo, water chestnut, caltrop
Proper cooking is essential for prevention.
What is the causative agent of Dwarf tapeworm infection?
Hymenolepis nana (diminuta)
This is a small tapeworm that can infect humans and rodents.
What are common sources of infection for Dwarf tapeworm?
Food contaminated with ova, direct contact
Transmission can occur through contaminated food or surfaces.
List common symptoms of Dwarf tapeworm infection.
- Diarrhea
- Stomach pain
- Irritation of intestine
Symptoms can vary based on the extent of the infection.
What is the incubation period for Dwarf tapeworm infection?
1 month
Symptoms may take weeks to develop after infection.
How can Dwarf tapeworm infection be prevented?
- Sanitary excreta disposal
- Personal hygiene
- Food sanitation
- Rodent control
Preventative measures focus on reducing exposure to contaminants.
What is the causative agent of Anisakiasis?
Nematodes of Anisakides family
This infection is caused by parasites found in marine mammals and fish.
What are common sources of infection for Anisakiasis?
Contaminated fish eaten raw or undercooked
Consuming raw or undercooked fish is the primary risk factor.
List common symptoms of Anisakiasis.
- Stomach pain
- Nausea
- Vomiting
Symptoms can be confused with other gastrointestinal issues.
What is the incubation period for Anisakiasis?
Hours
Symptoms can appear rapidly after consumption.
How can Anisakiasis be prevented?
- Do not eat raw fish
- Cook fish to 140°F or freeze to -4°F for 60 hr to kill larvae
Proper cooking or freezing of fish is essential for prevention.
What is Ergotism?
Ergot, a parasitic fungus (Claviceps purpurea)
Ergotism is caused by consuming grains contaminated with this fungus.
What are common sources of Ergotism?
Fungus of rye and occasionally other grains
Contaminated grains can lead to severe health issues.
List common symptoms of Ergotism.
- Gangrene involving extremities
- Weakness and drowsiness
- Headache
- Giddiness
- Painful cramps in limbs
Symptoms can be severe and vary based on exposure.
What is the incubation period for Ergotism?
Gradual, after prolonged use of diseased rye in food
Symptoms may take time to develop after consumption.
How can Ergotism be prevented?
Do not use discolored or spoiled grain
Proper inspection of grains before use is essential.
What is Rhubarb poison?
Probably oxalic acid
The leaves of rhubarb contain toxic compounds.
What are common sources of Rhubarb poison?
Rhubarb leaves
Consuming rhubarb leaves can lead to poisoning.
List common symptoms of Rhubarb poisoning.
- Intermittent cramp-like pains
- Vomiting
- Convulsions
- Coma
Symptoms can be severe and require medical attention.
What is the incubation period for Rhubarb poisoning?
2-12 hr
Symptoms can appear quickly after ingestion.
How can Rhubarb poisoning be prevented?
Do not use rhubarb leaves for food
Only the stalks of rhubarb are safe for consumption.
What is Mushroom poisoning caused by?
Phalloidine and other alkaloids; also other poisons in mushrooms
Certain mushrooms can be highly toxic if consumed.
What are common sources of Mushroom poisoning?
Poisonous mushrooms (Amanita phalloides, Amanita muscaria, others)
Wild mushrooms should be avoided unless properly identified.
List common symptoms of Mushroom poisoning.
- Severe abdominal pain
- Intense thirst
- Retching
- Vomiting
- Profuse watery evacuations
Symptoms can be severe and require immediate medical attention.
What is the incubation period for Mushroom poisoning?
6-15 hr or 15 min-6 hr with muscaria
Symptoms can occur relatively quickly after ingestion.
How can Mushroom poisoning be prevented?
Do not eat wild mushrooms; warn others
Proper identification and caution are essential.
What is Favism?
Poison from Vicia faba bean, pollen
Favism is a reaction to the consumption of fava beans, particularly in susceptible individuals.
What are common sources of Favism?
Vicia faba Plant and bean
The raw bean and its pollen can trigger severe reactions.
List common symptoms of Favism.
- Acute febrile anemia with jaundice
- Passage of blood in urine
Symptoms can be severe and require medical intervention.
What is the incubation period for Favism?
1-24 hr
Symptoms can appear quickly after exposure.
How can Favism be prevented?
Avoid eating beans, particularly when green, or inhalation of pollen
Awareness of dietary restrictions is essential.
What is Fish poisoning?
Poison in fish, ovaries and testes, roe (heat stable)
Certain fish can contain toxins, especially during breeding seasons.
What are common sources of Fish poisoning?
Fish: pike, carp, sturgeon roe in breeding season
Eating fish during certain times of the year can increase risk.
List common symptoms of Fish poisoning.
- Painful cramps
- Dyspnea
- Cold sweats
- Dilated pupils
- Difficulty in swallowing and breathing
Symptoms can vary based on the type of fish and the toxin involved.
What is the incubation period for Fish poisoning?
30 min-2 hr or longer
Symptoms can occur quickly after consumption.
How can Fish poisoning be prevented?
Avoid eating roe during breeding season; heed local warnings concerning edible fish
Awareness of local fish advisories is crucial.
What is Ciguatera poisoning?
Toxin concentrated in tropical reef fish flesh, possibly from toxic dinoflagellate; also roe
Ciguatera is a type of fish poisoning associated with certain tropical fish.
What are common sources of Ciguatera poisoning?
Warm-water fish, possibly barracuda, snapper, grouper, amberjack, sea bass
Certain reef fish are more likely to carry the toxin.
List common symptoms of Ciguatera poisoning.
- Progressive numbness
- Tetanus-like spasms
- Heavy tongue
- Facial stiffness
- Nausea
- Vomiting
- Diarrhea
- Dryness of the mouth
- Abdominal cramps
Symptoms can be severe and prolonged.
What is the incubation period for Ciguatera poisoning?
1-8 hr, usually 3-5 hr
Symptoms can develop relatively quickly after consumption.
How can Ciguatera poisoning be prevented?
Avoid warm-water fish caught near shore in Pacific and Caribbean
Awareness of local fish advisories is crucial.
What is Shellfish poisoning (Paralytic)?
Neurotoxin produced by Gonyaulax catenella and G. tamarensis
This type of poisoning is associated with shellfish that feed on toxic dinoflagellates.
What are common sources of Shellfish poisoning?
Mussels and clams, associated with so-called ‘red tides’
Red tides indicate the presence of toxic algae that can accumulate in shellfish.
List common symptoms of Shellfish poisoning.
- Respiratory paralysis
- Trembling about lips to loss of control of the extremities and neck
Symptoms can be severe and potentially life-threatening.
What is the incubation period for Shellfish poisoning?
5-30 min and longer, up to 12 hr
Symptoms can occur rapidly after consumption.
How can Shellfish poisoning be prevented?
Obtain shellfish from certified dealers and from approved areas
Ensuring the source of shellfish is safe is critical.
What is Scombroid fish poisoning?
Scombrotoxin (histamine-like toxin)
This type of poisoning occurs from improperly stored fish.
What are common sources of Scombroid fish poisoning?
Scombridea family primarily tuna, bluefish, amberjack
These fish are particularly susceptible to histamine formation if not handled properly.
List common symptoms of Scombroid fish poisoning.
- Headache
- Burning mouth
- Nausea
- Vomiting
- Diarrhea
- Tingling of fingers
- Fever
- Cramps
Symptoms can vary based on individual sensitivity and the amount consumed.
What is the incubation period for Scombroid fish poisoning?
Several minutes to 1 hr
Symptoms can appear quickly after consumption.
How can Scombroid fish poisoning be prevented?
Gut fish immediately after catch and refrigerate at 32°F or on ice
Proper handling and storage of fish are essential for prevention.
What is Snakeroot poisoning?
Trematol in snakeroot (Eupatorium urticaefolium)
This poisoning occurs from consuming milk from cows that have grazed on snakeroot.
What are common sources of Snakeroot poisoning?
Milk from cows pastured on snakeroot
The toxin can concentrate in milk, leading to human poisoning.
List common symptoms of Snakeroot poisoning.
- Weakness or prostration
- Vomiting
- Severe constipation and pain
- Thirst
- Temperature normal
Symptoms can be severe and require medical attention.
What is the incubation period for Snakeroot poisoning?
Variable, repeated with use of the milk
Symptoms can vary based on the amount of contaminated milk consumed.
How can Snakeroot poisoning be prevented?
Prevent cows from pasturing in wooded areas where snakeroot exists
Monitoring grazing areas is essential.
What is Potato poisoning?
Solanum tuberosum; other Solanum
This poisoning is associated with consuming sprouted or green potatoes.
What are common sources of Potato poisoning?
Possibly green sprouted potatoes
Green parts of potatoes contain toxic compounds.
List common symptoms of Potato poisoning.
- Vomiting
- Diarrhea
- Headache
- Abdominal pains
- Prostration
Symptoms can vary based on the amount consumed.
What is the incubation period for Potato poisoning?
A few hours
Symptoms can appear relatively quickly after ingestion.
How can Potato poisoning be prevented?
Do not use sprouts or peel of sprouted green potatoes
Proper storage and handling of potatoes are essential.
What is Water hemlock poisoning?
Cicutoxin or resin from hemlock (Cicuta maculata)
Water hemlock is one of the most toxic plants in North America.
What are common sources of Water hemlock poisoning?
Leaves and roots of water hemlock
All parts of the plant are highly toxic.
List common symptoms of Water hemlock poisoning.
- Nausea
- Vomiting
- Convulsions
- Pain in stomach
- Diarrhea
Symptoms can be severe and require immediate medical attention.
What is the incubation period for Water hemlock poisoning?
1-2 hr
Symptoms can develop rapidly after ingestion.
How can Water hemlock poisoning be prevented?
Do not eat roots, leaves, or flowers of water hemlock
Awareness of toxic plants is essential.
What is Antimony poisoning?
Antimony
Antimony is a toxic element often found in poorly made cookware.
What are common sources of Antimony poisoning?
Gray-enameled cooking utensils
Using cheap cookware can lead to contamination.
List common symptoms of Antimony poisoning.
- Vomiting
- Paralysis of arms
Symptoms can be severe and require medical intervention.
What is the incubation period for Antimony poisoning?
5 min-1 hour
Symptoms can appear rapidly after exposure.
How can Antimony poisoning be prevented?
Avoid purchase and use of poor-quality gray-enameled, chipped enamel utensils
Choosing high-quality cookware can prevent exposure.
What is Arsenic poisoning?
Arsenic
Arsenic is a toxic element often found in contaminated water and food.
What are common sources of Arsenic poisoning?
Arsenic-contaminated food or water
Consuming contaminated sources can lead to poisoning.
List common symptoms of Arsenic poisoning.
- Vomiting
- Diarrhea
- Painful tenesmus (a cumulative poison)
Symptoms can vary based on the level of exposure.
What is the incubation period for Arsenic poisoning?
10 min and longer
Symptoms can develop quickly after ingestion.
How can Arsenic poisoning be prevented?
Keep arsenic sprays, etc., locked; wash fruits, vegetables
Awareness of potential sources is crucial.
What is Cadmium poisoning?
Cadmium
Cadmium is a toxic metal that can contaminate food and water.
What are common sources of Cadmium poisoning?
Cadmium-plated utensils
Using cadmium-plated cookware can lead to exposure.
List common symptoms of Cadmium poisoning.
- Nausea
- Vomiting
- Cramps
- Diarrhea
Symptoms can vary based on the level of exposure.
What is the incubation period for Cadmium poisoning?
15-30 min
Symptoms can develop relatively quickly after exposure.
How can Cadmium poisoning be prevented?
Watch for cadmium-plated utensils, racks, and destroy
Proper monitoring of kitchen items is essential.
What is Cyanide poisoning?
Cyanide, sodium
Cyanide is a highly toxic compound that can be found in certain household products.
What are common sources of Cyanide poisoning?
Cyanide silver polish
Certain household chemicals can be a source of exposure.
List common symptoms of Cyanide poisoning.
- Dizziness
- Giddiness
- Dyspnea
- Palpitation
- Unconsciousness
Symptoms can be severe and require immediate medical attention.
What is the incubation period for Cyanide poisoning?
Rapid
Symptoms can appear almost immediately after exposure.
How can Cyanide poisoning be prevented?
Select silver polish of known composition; prohibit sale of poisonous polish
Awareness of product safety is essential.
What is Fluoride poisoning?
Fluoride or sodium fluoride
Fluoride can be toxic in high concentrations.
What are common sources of Fluoride poisoning?
Roach powder
Certain pest control products can pose a risk.
List common symptoms of Fluoride poisoning.
- Acute poisoning
- Vomiting
- Abdominal pain
- Convulsions
- Paresis of eye, face, finger muscles, and lower extremities
- Diarrhea
Symptoms can be severe and require medical attention.
What is the incubation period for Fluoride poisoning?
Few minutes - 2 hr
Symptoms can develop quickly after exposure.
How can Fluoride poisoning be prevented?
Keep roach powder under lock and key; mark ‘Poison’
Proper storage and labeling of hazardous substances are essential.
What is Lead poisoning?
Lead
Lead is a toxic metal that can cause serious health issues.
What are common sources of Lead poisoning?
Lead pipe, sprays, oxides, and utensils, lead-base paints
Exposure can occur through contaminated food, water, or products.
List common symptoms of Lead poisoning.
- Abdominal pain
- Vomiting
- Diarrhea
- Mental retardation
- Birth defects
- Fatigue
- Anemia
Symptoms can vary based on the level of exposure.
What is the incubation period for Lead poisoning?
30 min and longer
Symptoms can take time to develop after exposure.
How can Lead poisoning be prevented?
- Do not use lead pipe; Pb < 0.015 mg/l
- Wash fruits
- Label plants
- Avoid using unglazed pottery
- Test imported pottery
- Screen child
- Remove lead paint
Awareness of potential sources is crucial.
What is Mercury poisoning?
Mercury-methyl mercury and other alkyl-mercury compounds
Mercury is a toxic element that can accumulate in the food chain.
What are common sources of Mercury poisoning?
Contaminated silt, water, aquatic life
Consuming contaminated fish is a primary risk factor.
List common symptoms of Mercury poisoning.
- Fatigue
- Mouth numbness
- Loss of vision
- Poor coordination and gait
- Tremors of hands
- Blindness
- Paralysis
Symptoms can vary based on the level of exposure.
What is the incubation period for Mercury poisoning?
2-30 min or longer
Symptoms can appear quickly after exposure.
How can Mercury poisoning be prevented?
- Keep mercuric compound under lock and key
- Do not consume fish with concentrations of mercury more than 0.5 ppm
- Water with more than 0.002 ppm
- Food with more than 0.05 ppm
- Eliminate discharges to the environment
Monitoring and regulation of mercury levels in food and water are essential.
What is Methyl chloride poisoning?
Methyl chloride
Methyl chloride is a chemical used as a refrigerant and can be toxic.
What are common sources of Methyl chloride poisoning?
Refrigerant, methyl chloride
Exposure can occur through leaks in refrigeration systems.
List common symptoms of Methyl chloride poisoning.
- Progressive drowsiness
- Stupor
- Weakness
- Nausea
- Vomiting
- Pain in abdomen
- Convulsions
Symptoms can be severe and require immediate medical attention.
What is the incubation period for Methyl chloride poisoning?
Variable
Symptoms can develop over time based on exposure.
How can Methyl chloride poisoning be prevented?
Use nontoxic refrigerant, or ice, water, brine, dry ice
Proper selection of refrigeration methods is essential.
What is Selenium poisoning?
Selenium
Selenium is a trace element that can be toxic in high concentrations.
What are common sources of Selenium poisoning?
Selenium-bearing vegetation
Consuming plants grown in selenium-rich soils can lead to exposure.
List common symptoms of Selenium poisoning.
- Gastrointestinal disorders
- Nervous and mental disorders
- Dermatitis in sunlight
Symptoms can vary based on the level of exposure.
What is the incubation period for Selenium poisoning?
Variable
Symptoms may take time to develop after exposure.
How can Selenium poisoning be prevented?
Avoid semiarid selenium-bearing soil for growing of wheat, or water with more than 0.05 mg/l Se
Monitoring soil and water quality is crucial.
What is Zinc poisoning?
Zinc
Zinc is an essential element but can be toxic in excessive amounts.
What are common sources of Zinc poisoning?
Galvanized iron
Using galvanized cookware can lead to contamination.
List common symptoms of Zinc poisoning.
- Pain in mouth
- Throat
- Abdomen followed by diarrhea
Symptoms can vary based on the level of exposure.
What is the incubation period for Zinc poisoning?
Variable, short
Symptoms can appear quickly after exposure.
How can Zinc poisoning be prevented?
Do not use galvanized utensils in preparation of foods or drink, or water with more than 5.0 mg/l zinc
Choosing safe cookware is essential for prevention.
What is Methemoglobinemia?
Nitrate nitrogen, plus nitrite
This condition occurs when nitrate is converted to methemoglobin in the blood.
What are common sources of Methemoglobinemia?
Groundwater; shallow dug wells, also drilled wells
Contaminated drinking water is a primary risk factor.
List common symptoms of Methemoglobinemia.
- Vomiting
- Diarrhea
- Cyanosis
Symptoms can indicate a lack of oxygen in the blood.
What is zinc poisoning primarily associated with?
Zinc
Zinc poisoning can occur due to ingestion of foods or drinks prepared in galvanized iron utensils.
What are the symptoms of zinc poisoning?
Pain in mouth, throat, and abdomen followed by diarrhea
Symptoms can vary but are often acute.
What precaution should be taken regarding galvanized utensils?
Do not use galvanized utensils in preparation of foods or drinks
This is important to avoid excessive zinc exposure.
What is methemoglobinemia caused by?
Nitrate nitrogen, plus nitrite
It is often related to contaminated drinking water.
What sources are commonly associated with high nitrates?
Groundwater; shallow dug wells, also drilled wells
These sources can become contaminated with agricultural runoff.
What are the symptoms of methemoglobinemia in infants?
Vomiting, diarrhea, and cyanosis
These symptoms can appear within 2-3 days of exposure.
What is the recommended nitrate level for drinking water?
Less than 45 mg/l NO
This level is crucial for safe consumption, especially in infant formula.
What is sodium nitrite poisoning related to?
Sodium nitrite
It can occur from consuming impure sodium nitrate and nitrite.
What are common sources of sodium nitrite?
Sodium nitrate taken for salt, cured meats
These food items can pose risks if not properly sourced.
What are the symptoms of sodium nitrite poisoning?
Dizziness, weakness, stomach cramps, diarrhea, vomiting, blue skin
Symptoms can appear rapidly, usually within 5-30 minutes.
What precaution should be taken regarding sodium nitrite?
Use USP sodium nitrate in curing meat
This ensures safety in food preparation.
What is copper poisoning associated with?
Copper
It can occur from prolonged contact of acid foods and carbonated beverages with copper.
What are the symptoms of copper poisoning?
Vomiting, weakness, diarrhea
Symptoms can manifest within 1 hour or less.
What precaution should be taken regarding copper containers?
Do not prepare or store acid foods or liquids in copper containers
The copper concentration should not exceed 0.3 mg/l.
What is a critical consideration for copper lines in soft drink machines?
Prevent CO backflow into copper lines
This helps to avoid contamination and potential poisoning.