A grade school has an outbreak of gastroenteritis and vomiting with nearly half of the school—both students and staff—affected. Which organism is most likely the cause?
A) Norwalk-like virus (calicivirus)
B) Clostridium difficile
C) Vibrio vulnificus
D) E. coli
A
Feedback:
An outbreak of gastroenteritis that is accompanied by vomiting and that affects both staff and students is most predominately caused by the Norwalk-like virus (calicivirus). Clostridium difficile is a nosocomial diarrhea that would not be characteristic of this population. Vibrio vulnificus is contamination of raw shellfish and would not be the cause of gastroenteritis. E. coli is a less likely cause.
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