(2024-12-13) California more H5N1 herds

Helen Branswell: the USDA confirmed another 13 H5N1 birdflu infected herds in California today. That makes 125 herds there this week alone.
CA total: 630.
National total since the outbreak was first detected: 845 herds in 16 states.

California is the state with the most dairy cows.