Number of influenza vaccinations needed to prevent one hospitalization U.S. 2018-2019
This statistic shows the estimated number of influenza vaccinations needed to prevent one influenza A (H1N1)-associated hospitalization in the U.S. during the 2018 to 2019 influenza season, by age group. An estimated 8,326 influenza vaccinations were needed in order to prevent one influenza-related hospitalization for adults aged 18 to 49 years.