Discussion
Food poisoning strains of Clostridium perfringens belong to
Answer: A
Correct answer: type A
Food poisoning is caused by type A strains, and specifically by those forming heat-resistant spores that survive cooking. The spores germinate as the meat dish cools slowly, the organisms multiply and are swallowed in large numbers, and they sporulate in the small intestine releasing the enterotoxin. The result is watery diarrhoea and cramps eight to twenty-four hours later, usually without vomiting or fever, and it settles in a day.
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