Causing Bloody Diarrhea

Question 1

Comma-S shaped organism, growth at 42 deg C

Answer 1

Campylobacter

Question 2

Protozoan; amebic dysentery; liver abscess

Answer 2

E. hystolitica

Question 3

O157:H7; can cause HUS; Shiga-like toxin

Answer 3

E.Coli

Question 4

Invades conlonic mucosa

Answer 4

Enteroinvasive E.coli

Question 5

Lactos (-); flagellar motility; has animal reservoir, especially in poultry and eggs

Answer 5

Salmonella

Question 6

Lactos (-), very low ID50, produces Shiga toxin, bacillary dysentery

Answer 6

Shigella

Question 7

Day care outbreaks, pseudoappendicits

Answer 7

Y. enterolitica