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Bacillus Cereus

Duration: 09:43

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marykuffner@*.com

Oct 25 2022, 9:12 pm

Good information. Thank you!

Bacillus cereus is an aerobic, spore-forming, gram-positive, rod. It is motile, non-encapsulated, and resistant to penicillin. It causes food poisoning. (Nausea, vomiting, and diarrhea.) Spores germinate in reheated rice, then the bacteria produce exotoxins, which when ingested cause food poisoning.

Clinical
Two syndromes can occur.
1. After a short incubation period of about 4 hours, nausea and vomiting occurs. This is similar to staphylococcal food poisoning. It is also called emetic syndrome. (1-5 hours). Results in severe nausea and vomiting but limited diarrhea. Self-limiting. Usually recovery occurs within 24 hours.
2. After a long incubation period of about 18 hours there is watery, non-bloody diarrhea resembling clostridial gastroenteritis. Fever and and vomiting are usually absent. This is called diarrheal syndrome (15-20 hours): Causes nausea, abdominal pain, and diarrhea lasting for 12-24 hours. This is why this toxin is mostly called the enterotoxin.

* Comprehend the characteristics and transmission routes of Bacillus cereus.

* Identify the exotoxins produced by Bacillus cereus and their associated clinical syndromes, including emetic and diarrheal presentations. \

* Outline the clinical manifestations and management strategies for Bacillus cereus food poisoning.

* Recognize the spectrum of non-foodborne infections caused by Bacillus cereus and understand their potential complications.

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Faculty

In addition to the presenter, following authors may have helped with the content writing, review, or approval:

Dr. Mobeen Syed

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