California health officials yesterday announced the state's second H5N1 avian flu infection in a dairy farm worker who had no ...

The FDA wins court battle against California stem cell clinics, reasserting authority over unproven therapies.

Across the U.S., more than 250 dairy herds have been infected in 14 states since the outbreak of H5N1 avian influenza was confirmed in March. Avian influenza has been spreading in wild and domestic ...

Although California dairy farmers anticipated a bird flu mortality rate of less than 2%, some say between 10% and 15% of ...

As an outbreak of bird flu among dairy cows continues to spread in the United States, two more cases have been reported in ...