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  • Influenza
  • Vaccine Recommendations

What are CDC recommendations for influenza vaccination of people who have already become ill with influenza during the season?

Because more than one type or subtype of influenza virus can circulate in any given influenza season, providers should offer influenza vaccination to unvaccinated people throughout the influenza season, including people who may have had an influenza illness already in the season.

Last reviewed: September 10, 2023

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