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The investigation gathered food samples from the event and stool samples from those who attended.
In lab reports, Clostridium perfringens enterotoxin turned up in two stool samples and Clostridium perfringens was found in a sample of roast beef — the former is what the latter bacteria turns into once digested.
“We did take other food samples… it was only the roast beef that came back growing bacteria,” said Mary Lou Albanese, the manager of infectious disease for the MLHU.
Albanese added that the bacteria is quick-moving, often making people ill within 12 hours after ingesting.
FoodWorld 