Infectious Diseases 2024

Infectious Diseases 2024

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.