Exam 34: Gastrointestinal Infections and Food Poisoning

What toxin does Shigella spp. produce?

What virus is the leading cause of diarrhea in children younger than age 5 years?

What is the most commonly identified intestinal parasite in the United States?

What type of diarrheal illness has no fever and no blood or pus in the stool?

All of the following organisms are commonly implicated in a foodborne outbreak, except

This is a form of food poisoning that can be life threatening even for otherwise healthy patients.

All of the following organisms can cause enterotoxin-mediated diarrhea, except

What diarrheal pathogen can produce a disease that can lead to hemolytic-uremic syndrome?

What virus causes an acute self-limiting diarrheal illness that is highly contagious through contaminated food, water, fomites, or person-to-person contact and is associated with vomiting and low-grade fever?

All the following organisms invade the bowel mucosal surface to produce diarrhea, except

What organ is colonized in a patient that carries Salmonella typhi?

What is the environmental reservoir of Campylobacter?

A microbiologist is reading a Gram stain and observes gram-negative, curved rods with a seagull-wing appearance. What is the most likely organism?

A fecal isolate identified as E. coli produces clear colonies on MacConkey agar with sorbitol. You should suspect