CDC human H5N1 cases update
17 October, 2024
Since April 2024, 25 human cases of avian influenza A(H5) virus infection have been reported in the United States; 26 in total since 2022. Ten of these cases were associated with exposure to H5N1 bird flu-infected poultry and 15 were associated with exposure to sick or infected dairy cows. This includes 11 cases in California.
All California cases occurred in dairy workers on affected farms.