Preliminary Estimated Influenza Illnesses, Medical visits, Hospitalizations, and Deaths in the United States - 2021-2022 influenza season | CDC - ISS-G20 Laboratorium Repository

The overall burden of influenza (flu) for the 2021-2022 season was an estimated 9 million flu illnesses, 4 million flu-related medical visits, 100,000 flu-related hospitalizations, and 5,000 flu deaths (Table 1).

For the past several years, CDC has used a mathematical model to estimate the numbers of influenza illnesses, medical visits, hospitalizations, and deaths (1-4). The methods used to calculate the estimates have been described previously (1-2). CDC uses the estimates of the burden of flu in the population to inform policy and communications related to influenza prevention and control.

Entire content available on: https://www.cdc.gov/flu/about/burden/2021-2022.htm