Pathogens

Question 1

Legionella

Answer 1

Bacteria
Symptoms: diarrhea, nausea, confusion
Present in air conditioning systems

Question 2

Pseudomonas artuginosa

Answer 2

Bacteria
Infects wounds, urinary & respiratory tracks.
Leads to pneumonia & meningitis
Found in humans, animals, soil & water

Question 3

Salmonella

Answer 3

Bacteria
Accuse gastroenteritis, diarrhea & cramps
Ex, typhoid fever
Most cases not associated with contaminated water

Question 4

Escherichia coli

Answer 4

Bacteria
Found in the intestines of all warm blooded animals
Severe diarrhea
Only 1% of E.Coli causes disease

Question 5

Campylobacter

Answer 5

Bacteria
Most common bacterial infection of humans
Diarrhea, fever, malaise

Question 6

Vibrio cholerae

Answer 6

Bacteria that causes cholera
Diarrhea, Vomiting, rapid dehydration, death
Transmitted via contaminated feces

Question 7

Leptospira

Answer 7

Bacteria, causes leptospirosis
Bacteria enter the blood stream through skin abbraisions after infected animals urinate there
Affects kidneys, liver, and nervous system

Question 8

C Parvum

Answer 8

Protozoan
Ubiquitous human pathogen
Prolonged watery diarrhea
Not killed by chlorination, can only be filtered out
Oocysts (eggs) remain dormant until swallowed

Question 9

G Lamlia

Answer 9

Protozoan
Causes giardiasis
Diarrhea, weakness, weight loss, gas, fever
Most common parasitic infection in the us

Question 10

Naegleria

Answer 10

Protozoan
Amoeba found in soil
Enters through mouth or nose, causes inflammation of the brain
Leads to rapid death

Question 11

Entamoeba histolytica

Answer 11

Protozoan causes disease in large intestine
Dysentery
Generally comes from defects in plumbing systems like leaky sewer pipes

Question 12

Hepatitis A

Answer 12

Virus
Excreted in feces of infected person
Inflammation of liver
Malaise, fever, nausea, anorexia

Question 13

Norovirus

Answer 13

Virus
Shed in fever of infected people
Most common in contaminated food, especially shellfish

Question 14

Poliomyelitis

Answer 14

Virus
Polio
Inflammation of nerve cells, paralysis, disability and deformity
Transmitted through person to person contact

Question 15

Salk vaccine

Answer 15

Dead polio virus

Question 16

Sabin vaccine

Answer 16

Non-virulent live polio virus
Person to person transmission

Question 17

Taenia saginata

Answer 17

Helminth
Tapeworm
Enter through the mouth mostly, sometimes skin
Swallowing water containing eggs

Question 18

Ascaris lumbricoides

Answer 18

Helminth
Small intestine infections caused by roundworm
Eggs excreted in feces

Question 19

Schistosoma

Answer 19

Helminth
Spends part of its life cycle in humans
Enters through the skin, then goes to lungs, liver and intestines
Needs a specific species of snail (not present in the US)
Can cause skin rash