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Botulism is rare, but quite dangerous. This quiz will help you learn how to make sure the food you eat is safe.
Foods with a low acid content are especially likely to have the botulism bacteria. These foods include asparagus and home-canned foods such as potatoes, green beans, beets, and corn that have not been canned correctly. Other sources have been:
Spores are often found on the skin or rind of fruits and vegetables and in seafood. The bacteria and spores themselves are harmless. The dangerous substance is the toxin made by the bacteria when they grow. The other foods listed as answers—raw tuna, raw eggs, and mayonnaise on a hot day—may also cause foodborne illness. But the culprits are not the botulism bacteria toxin.
Francesca Torriani, MD
Medical Director, Infection Prevention and Clinical Epidemiology
UC San Diego | School of Medicine