A 38-year-old woman has diarrhea with fever and lower abdominal pain. She has had an occasional stool with blood in it.

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A 38-year-old woman has diarrhea with fever and lower abdominalpain. She has had an occasional stool with blood in it. Her husbandhas had a similar illness. History taking about their recent foodand drink in the household revealed the following history. Threedays earlier she bought a chicken from a local store. Aftercleaning the chicken pieces, she used the same knife to chopcabbage, carrots, and cucumbers for a cold salad withoutwashing the knife. The salad was eaten by her husband and herselfbut not by her two young children, neither of which becameill. Gram staining of her stool revealed slightly curved orS-shaped bacteria in pairs, attached end-to-end, giving theimpression of a bird in flight ("gull-wing" forms). What is themost likely causative agent of enteritis in this woman and herhusband?
a.
Escherichia coli
b.
Salmonella Typhi
c.
Shigella dysenteriae
d.
Vibrio vulnificus
e.
Campylobacter jejuni
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