Past Seasons Burden Averted Estimates

2016-2017 Estimated Influenza Illnesses, Medical visits, and Hospitalizations Averted by Vaccination in the United States

This web page provides estimates on the burden of influenza and the impact of annual influenza vaccination in the United States for the 2016–2017 influenza season.

For the past several years, CDC has used a model to estimate the numbers of influenza illnesses, medical visits, hospitalizations, and the impact of influenza vaccination on these numbers in the United States (1-5). The methods used to calculate the estimates have been described previously (1,2) and are outlined briefly below. CDC uses the estimates of the burden of influenza in the population and the impact of influenza vaccination to inform policy and communications related to influenza.