For the first time, the Centers for Disease Control and Prevention documented a possible transmission of highly pathogenic avian influenza A(H5N1) from a domestic cat to a human being. This is revealed by a study that analyzed an outbreak in Los Angeles County, California, between November 2024 and January 2025. The research, conducted by the County Department of Public Health and the CDC, examined 139 people exposed to 19 infected cats. Among t…