Flu activity peak months in the United States from the 1982 to 1983 through 2021 to 2022 flu seasons*
Flu activity peak months in the United States from the 1982 to 1983 through 2021 to 2022 flu seasons*
* There was no discernible peak in activity during the 2020 to 2021 season due to the uncharacteristically low level of influenza virus circulation that season.
Reproduced from: Influenza (Flu): Flu Season. Centers for Disease Control and Prevention. https://www.cdc.gov/flu/about/season.html (Accessed on November 15, 2024).
