In cross-contamination, hazardous bacteria are physically moved or transferred from one person, object, or location to another. Cross-contamination must be avoided if foodborne illness is to be avoided.
To taint, pollute, defile, or to make impure or dirty. To be contaminated means to be exposed to or come into contact with mud or other unpleasantness (logically enough, it derives from the Latin word tangere, meaning "to touch").
Cross contamination can take a variety of forms. It occurs when bacteria or other germs are transferred from one substance to another. Transfer of chemicals, poisons, or allergens in food are examples of other types of cross contamination.
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