H5N1 Outbreak in US Cows Confirmed by USDA Analysis, Raises Transmission Fears

May 3, 2024, 09:46 PM

A significant outbreak of H5N1 avian influenza has been reported in dairy cows across the United States, raising concerns about the potential for human transmission. Originating from a single spillover event from wild birds in the Texas panhandle around December 2023, the virus has now spread to nine states. An USDA analysis of 220 viral genomes has confirmed the outbreak's extent. Health experts are closely monitoring the situation due to the virus's ability to jump between species, which could increase the risk of it adapting to humans. The USDA has been criticized for its delayed response and lack of data transparency. Measures to protect farm workers and prevent further spread include enhanced surveillance and mandatory testing of dairy cows before transportation.