Bird Flu 2024 California. Bird flu is spreading around the u.s. On friday, july 26, 2024, cdc posted updated data on its website regarding the number of confirmed human cases of h5 bird flu and the number of people who have been monitored and tested in the united states since the beginning of the current outbreaks in dairy cows and other animals in 2024.

In california, the virus has affected 37 commercial and 22 backyard flocks, totaling 5.4 million birds, according to u.s. An unusual surge in flu viruses detected at wastewater treatment plants in california and other parts of the country is raising concerns among some experts that h5n1 bird flu may be.