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Internal Medicine
134 Answers
9,276 Helpful Votes
Many types of food poisoning are contagious. You usually get food poisoning from eating food contaminated with bacteria, viruses, or parasites. However, if you have food poisoning it is possible to pass those germs to someone else. Some of the most common types that are contagious are salmonella, E. coli, and norovirus. When you have food poisoning, your vomit and feces is full of these germs. That’s why it’s so important to disinfect areas that may be contaminated. For instance, if any bacteria remain, someone could come along, touch that area, put their fingers near their mouth and end up with symptoms of food poisoning. Other types of food poisoning are caused by toxins produced by bacteria in the food – usually from spoiled food that has been left at room temperature too long. This is a less common type of food poisoning, but it’s not contagious from one person to another. You can get it only from eating the contaminated food. But since you may not know exactly which type of food poisoning you have, it’s always best to be cautious. Fully disinfect any contaminated areas just in case.

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