Shigellosis

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Which of the following bacteria grow better at 20–30 °C?

Yersinia

Vibrio cholerae (correct)

Vibrio parahemolyticus

Campylobacter

What is the infective dose required for Vibrio cholerae infection?

≥10^8 (correct)

≥10

≥10^4

≥10^2

Which bacteria is recognized as one of the main causes of bacterial foodborne disease in many developed countries?

Helicobacter pylori

Vibrio cholerae

Vibrio parahemolyticus

Campylobacter (correct)

Which bacterial family is considered the most important in human medicine?

Enterobacteriaceae Signup and view all the answers

Which of the following is true about E. coli O157:H7?

It can cause hemorrhagic colitis and hemolytic-uremic syndrome. Signup and view all the answers

Which bacterial species is considered an indicator organism for fecal contamination of water and foods?

Escherichia coli Signup and view all the answers

Which of the following is a characteristic of Shigellae?

They can penetrate the colonic mucosa to cause local necrotic infections. Signup and view all the answers

Which antigen of the Enterobacteriaceae is a specific polysaccharide chain in the lipopolysaccharide complex of the outer membrane?

O antigen Signup and view all the answers

Which type of E. coli is associated with traveler's diarrhea?

Enterotoxigenic E. coli Signup and view all the answers

Which of the following is true about Aeromonas and Plesiomonas?

They are oxidase positive Signup and view all the answers

What is the main method used to identify Aeromonas and Plesiomonas?

Oxidase test Signup and view all the answers

Which of the following is a common therapy for severe diarrhea caused by Aeromonas and Plesiomonas?

Fluid replacement Signup and view all the answers

Which of the following is true about Shigellosis?

It is caused by a bacterium that inhibits protein synthesis in eukaryotic cells Signup and view all the answers

What is the main difference between typhoid salmonelloses and enteric salmonella infections?

Typhoid salmonelloses cause systemic disease in humans, while enteric salmonella infections are restricted to the intestinal tract Signup and view all the answers

Which of the following is true about Yersiniosis?

It is transmitted through fecal contamination of water, milk, and meat Signup and view all the answers