Recent findings indicate that black rats in Riverside County, California, have tested positive for the H5N1 avian influenza virus. This development, reported by the U.S. Department of Agriculture, highlights a troubling trend in the spread of the virus, which has been detected in 514 mammals since May 2022. The black rats were linked to two infected poultry farms and pose a potential risk for new transmission routes to both pets and humans. Researchers caution that rodent transmission may complicate containment efforts in agricultural settings.
Black rats have tested positive for H5N1, raising concerns about a new transmission route for avian influenza to pets and humans.
The detection of H5N1 in black rats points to a worrying trend as urban infestations could allow for easier spread between mammals and poultry.
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