Purpose
This page includes information about the estimated burden of influenza (flu) from past seasons beginning with the 2010-2011 flu season using a dashboard. This dashboard includes estimates and rates for past seasons, summary pages comparing seasons and age groups, and a table including the input values for the disease burden model.
Past Seasons
To open the dashboard in full-screen mode, click the double arrow icon in the bottom right corner.
The dashboard above is an interactive tool to access and visualize information about the estimated burden of flu from past seasons, beginning with the 2010-2011 flu season. Pages include data tables for the estimates and rates for past seasons that can be downloaded using links on each page. There are also pages that include visuals designed to more easily compare the burden of flu across seasons, outcomes and between age groups. Information on How CDC Estimates the Burden of Seasonal Influenza in the U.S. and additional information about the 2021-2022, 2022-2023 and 2023-2024 flu seasons are also available.
- Uncertainty interval: Adjusted estimates are presented in two parts: an uncertainty interval [UI] and a point estimate. The uncertainty interval provides a range in which the true number or rate of flu illnesses, medical visits, hospitalizations, or deaths would be expected to fall if the same study was repeated many times, and it gives an idea of the precision of the point estimate. A 95% uncertainty interval means that if the study were repeated 100 times, then 95 out of 100 times the uncertainty interval would contain the true point estimate. Conversely, in only 5 times out of a 100 would the uncertainty interval not contain the true point estimate.