U.S final - Food and Drugs as Public Health Issues Flashcards
Foodborne illness
what is the definition?
what organisms can it be caused by
Definition of foodborne illness:
Foodborne illnesses are defined as diseases, usually either infectious or toxic in nature, caused by agents that enter the body through the ingestion of food. Every person is at risk of foodborne illness.
Caused by bacteria, viruses, parasites, toxins, pollutants, metals
Foodborne Illness
what can it be caused by
Caused by
* Breakdowns in sanitation
* Poor food handling practices
Foodborne Illness
what is a foodborne outbreak
When two or more people get the same illness from the same contaminated food or drink, the event is called a foodborne outbreak.
Public health officials investigate outbreaks to control them, so more people do not get sick in the outbreak, and to learn how to prevent similar outbreaks from happening in the future. http://www.cdc.gov/outbreaknet/outbreaks.html
Sporadic Foodborne Illness
what is not a part of outbreaks
what is more common than Foodborne outbreaks
Sporadic illnesses are not part of outbreaks
Sporadic illnesses are far more common than foodborne outbreaks
The origin of sporadic illnesses is often not known
Some Stats
CDC estimates that each year
76 million people contract foodborne diseases
5000 people die from foodborne illness
Deaths occur most frequently in the elderly, young, immune-compromised and those exposed to high doses of the causative agent
The FDA estimates that 2 to 3% of foodborne illnesses lead to long-term illness
Foodborne Disease
what organisms most often causes foodborne outbreaks
how do some bacteria produce illness
Foodborne disease and illness caused by contaminated foods most often with:
Bacteria
Viruses
Parasites
Some bacteria cause illness by way of toxins they produce
Outbreaks
what is it linked to
what are the most common sources?
CDC research shows outbreaks linked to imported foods increasing
Fish and spices the most common sources
CDC experts reviewed outbreaks reported to CDC’s Foodborne Disease Outbreak Surveillance System from 2005 to present for implicated foods that were imported into the United States
Foodborne Diseases are also Caused by
Chemicals (antimony, arsenic, cadmium, copper, mercury, nitrates, sodium fluoride, thallium, tin, zinc, lead)
Pesticides
Hormones
Antibiotics
Mushrooms
Shellfish toxin
Physical contaminants (feces, hair, insects)
Foods Most Often Associated with Foodborne Illness
what raw foods are from animal origin
Raw foods of animal origin
Meat and poultry
Produce
Eggs
Milk
Raw fish From contaminated water
Nuts
Raw product
- Cleaned with contaminated water
- Not cleaned at all
- Unpasteurized fruit and Vegetable juices
Common Pathogens
Salmonella
E coli
Hepatitis A
Cholera
Norovirus/Calicivirus
charts
Salmonella
Sources of Salmonella Outbreak Investigations
Peanut Butter
Hedgehogs
Mangoes
Cantaloupe
Ground Beef
Live Poultry
Salmonella Montevideo
Small Turtles
Dry Dog Food
Raw Ground Tuna
Salmonella
what are the symptoms
what is the treatment
Symptoms
Diarrhea (sometimes bloody), fever, and abdominal cramps. Occasionally can establish localized infection (e.g., in a joint) or enter the blood
Treatment
Usually resolves in 5 to 7 days with oral fluids
May require IV fluid replacement
May require antibiotics in severe cases
E Coli
how do infections start
what are the common vehicles
Infections start when you get tiny (usually invisible) amounts of human or animal feces in your mouth
Common vehicles
Unpasteurized milk or cider
Raw vegetables
Hamburg
Soft cheeses from raw milk
Contaminated water
E Coli
what are the symptoms
what is the treatment
Symptoms
Severe stomach cramps, diarrhea (often bloody), and vomiting. If there is fever, it usually is not very high
Treatment
Most people get better within 5–7 days. Some infections are very mild, but others are severe or even life-threatening
Antibiotics are not indicated
Hepatitis A
what is it transmitted by
what are the symptoms
Infection is primarily transmitted by the fecal-oral route, by either person-to-person contact or consumption of contaminated food or water
Symptoms
Appear several weeks after exposure
Fatigue
Nausea and vomiting
Abdominal pain or discomfort, especially in the area of your liver on your right side beneath your lower ribs
Loss of appetite
Low-grade fever
Dark urine
Muscle pain
Yellowing of the skin and eyes (jaundice)
Hepatitis A
what is the treatment?
Treatment
No specific treatment exists for hepatitis A. The body will clear the hepatitis A virus on its own. In most cases of hepatitis A, the liver heals completely in a month or two with no lasting damage
Complications
Acute liver failure
Death
hepatitis: hepatic (liver) inflammation
Cholera
Rare in industrialized countries in the past 100 years
A bacterial intestinal infection
Caused by ingestion of food or water containing the bacteria
Usually self limiting, may require fluid replacement
Symptoms include watery diarrhea, vomiting and leg cramps