Exam 34: Gastrointestinal Infections and Food Poisoning

What is the most common cause of bacterial gastroenteritis in the world?

What is the most important cause of iatrogenic diarrhea in adults?

A man and his family drive to the coast and have an oyster dinner.A couple of days later,the man arrives at the emergency department with a fever,bullous skin lesions,and diarrhea.He is extremely ill and the doctor questions whether he is septic.Blood and stool specimens are collected.The microbiology technician notices curved gram-negative rods on the stool Gram stain.What is the most probable organism causing this condition?

What type of diarrheal illness has a rapid onset of symptoms after food ingestion (usually less than 12 hours)?

What virus causes an acute self-limited diarrheal illness that is highly contagious in closed quarters but is associated with vomiting and low-grade fever?

All the following organisms invade the bowel mucosal surface to produce diarrhea EXCEPT:

What defense mechanism does the colon have to guard against infection?

What condition caused by diarrhea will trigger kidney failure,liver failure,myocardial infarction,and death?

What is the environmental reservoir of Campylobacter?

What common organism invades the full thickness of the bowel with lymphatic spread?

All of the following organisms have been implicated in a food-borne outbreak EXCEPT:

What diarrheal pathogen can produce a disease that may lead to hemolytic-uremic syndrome (hemolytic anemia,low platelet count,and kidney failure)?

A microbiologist is reading a Gram stain and observes gram-negative,curved rods with a seagull-wing appearance.What organism could this be?