Bacillus cereus

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Bacillus cereus

Structure and Physiology

Bacillus cereus is a Gram-positive, rod-shaped, endopore-forming facultative aerobe bacterium related to Bacillus anthracis and Bacillus thuringiensis.

Transmission and Disease

Although B. cereus is commonly associated with food-borne illnesses, this microbe can also be responsible for several local and systemic infections.


Due to this bacterium’s ability to sporulate, B. cereus is often relatively challenging to disinfect.


Cultivating B. cereus generally takes 3 to 4 days as the bacteria must be grown on a specific agar media to induce sporulation.