Bacillus cereus is a type of bacteria commonly found in soil, food, and the environment. It can cause foodborne illnesses, often associated with improperly stored rice, pasta, and dairy products. The bacteria can produce toxins that lead to symptoms like nausea, vomiting, and diarrhea. This bacterium is known for its ability to form spores, which can survive cooking and other harsh conditions. While many people may carry Bacillus cereus without becoming ill, it poses a risk, especially in food that is left out at room temperature for too long. Proper food handling and storage are essential to prevent infection.