Pet owners must take "proper precautions to reduce the risk of spread," said Dr. Susan Nelson, a veterinarian and professor.

San Mateo County public health officials reported finding H5N1 bird flu in a pet cat and a backyard poultry flock.

Avian influenza is widespread among wild birds and is causing outbreaks in poultry and U.S. dairy cows, with several recent cases reported in dairy and poultry workers. There have been 67 reported ...

Proud owner Ashley Saldana was given 1-day-old kittens to care for as a foster carer, one of which was "extremely sick and nonresponsive." She placed the kitten next to her 3-month-old cat ...