When an outbreak occurs, label the contaminants or suspect food with a notice

The food was a “stealth food” – foods that people may eat but are unlikely to remember. Ex. garnishes, condiments on sandwiches, and ingredients in a food item such as the filling in a snack cracker.

Explanation:

When no statistical association between a food and illness is found, it does not mean the illness or outbreak was not foodborne. It means only that the source could not be determined. If the outbreak has ended, the source of the outbreak is declared unknown.

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