The Flu Vanished During Covid. What Will Its Return Look Like? - The New York Times
Full and Partial Flu Vaccination Coverage in Young Children, Six Immunization Information Systems Sentinel Sites, 2012-13–2016-17 | FluVaxView | Seasonal Influenza (Flu) | CDC
Surveillance of influenza and other seasonal respiratory viruses in winter 2021 to 2022 - GOV.UK
Influenza season summaries
Cold and Flu Season is Approaching (Part 1) - GrassrootsHealth
The Flu Vanished During Covid. What Will Its Return Look Like? - The New York Times
Influenza vaccination and mortality: prospective cohort study of the elderly in a large geographical area | European Respiratory Society
2019-2020 Flu Season on Track to Be Especially Severe | Time