Multiple Choice
Several people from a picnic came down with a gastrointestinal disturbance, and public health officials suspected a case of food poisoning.The food, especially hot dogs, were cultured and after 24 hours of growth on sheep blood agar (SBA) , there was a small, round, smooth, translucent colony surrounded by a narrow zone of b-hemolysis.A Gram stain showed gram-positive coccobacilli.Motility medium was inoculated and an umbrella pattern of motility was observed at room temperature.What organism was isolated as the cause of the illness?
A) Listeria monocytogenes
B) Rhodococcus equi
C) Rothia dentocariosa
D) Corynebacterium diphtheriae
Correct Answer:
Verified
Correct Answer:
Verified
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