|Cell Wall: Gram Positive||Shape: Spore-forming Rod|
|Metabolism: Obligate Aerobe|
- Heat-labile Enterotoxin: Similar mechanism of action as that of V. Cholera toxin and requires 12-24hrs to cause infectious diarrhea
- Heat-stable Enterotoxin: Similar mechanism as the S. aureus enterotoxin and causes diarrhea with a much quicker onset of less than 8hrs
- B. cereus spores can exist on grains such as rice and survive the cooking process. When left reheated for long periods the spores can germinate and grow, thus elaborating enterotoxins.
- Food Poisoning: Depending on which enterotoxin dominates the picture, infectious diarrhea may occur with different kinetics. If heat-labile enterotoxin dominates then diarrhea with onset 12-24hrs occurs which is generally watery. If heat-stable enterotoxin dominates then diarrhea with onset of less than 8hrs occurs together with nausea, vomiting, and abdominal pain.
- Supportive therapy: Antibiotics are useless as the diarrhea is caused solely by ingestion of pre-formed enterotoxins.