Plural of grippe; multiple cases or instances of influenza or flu.
Standard French-derived noun pluralization of 'grippe' using English '-s' suffix. Sometimes used in medical literature when discussing multiple flu outbreaks or variants.
In medical French texts, you'll see 'grippes' used to distinguish between different flu seasons or subtypes, but English largely just says 'cases of flu,' showing how language streamlines disease terminology differently by culture.
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