Influenza Vaccine Uptake and Missed Opportunities Among the Medicare-Covered Population With High-Risk Conditions During the 2018 to 2019 Influenza Season

Seasonal influenza causes substantial morbidity and mortality among older U.S. adults and those with comorbid health conditions.To describe seasonal influenza vaccine uptake and identify factors associated with missed opportunities for influenza vaccination.Retrospective cohort study.Medicare fee-for-service claims.31.6 million U.S. adults continuously enrolled under Medicare Parts A and B during the 2018 to 2019 influenza season.Influenza...