Consider the following case: 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. 1. What organism was isolated as the cause of the illness?

2 Discuss at least two other tests that can be performed to identify this organism.

3 If the condition progressed, discuss secondary clinical infections in at least two patient populations