New Mexico and Wyoming are still detecting "high" virus activity, along with New Hampshire on the East Coast. "Moderate" levels have been reported in 14 states, and "low" levels are now detected in 20 ...

Cases of H5N1 have been climbing nationally, with one West Coast state seeing a rapid increase since the start of October.

Most cases of hantavirus are reported in the Western and Southwestern United States. Most states, including California, ...