Food poisoning Food poisoning occurs when food contaminated with organisms is ingested. The bacteria Staphylococcus aureus can commonly be found on people, but�when allowed to grow in food this bacteria can produce a toxin that causes illness such as vomiting and diarrhea. Proper hygiene and handwashing can prevent this bacteria from�entering food that will be eaten.�The major source of Escherichia is from the feces of infected animals. It can also�be found in untreated water. Cooking at the right temperature is important in eliminating this bacteria when it has contaminated food.

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