A common cause of Rapid onset of vomiting within hours of food due to pre-formed enterotoxins seen in exams - eaten Fried rice, Vomits then diarrhoea then better
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Clinical
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Rapid onset of vomiting within hours of food consumption occurs
after the ingestion of the pre-formed enterotoxins of B. cereus. Fried
rice or sauces are frequent sources, and enterotoxin is formed during
storage. Between 1 and 4 hrs after ingestion, brisk vomiting and
some diarrhoea occur, with rapid resolution within 24 hrs.
If viable organisms are ingested, the toxin is produced within the
gut, leading to a longer incubation period of 12–24 hrs and watery
diarrhoea with abdominal cramps. The disease is self-limiting.
Management simply consists of fluid replacement and public health
notification.
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Bacillus cereus poisoning
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