H5N1 Bird Flu Remains Low Risk to Humans as CDC Monitors Animal Spread in US Dairy and Poultry

U.S. and global health officials are closely tracking the evolving bird flu situation as H5N1 continues to circulate in animals but remains a low risk to the general public, according to the Centers for Disease Control and Prevention and the World Health Organization. In the United States, CDC influenza surveillance shows no unusual flu activity in people, including H5N1, and no signs of sustained human-to-human transmission. CDC reports that since late 2025, only a small number of human H5N1 infections have been detected, mostly in people with direct contact with infected animals, and cases have been mild, with conjunctivitis the most common symptom. The agency continues to monitor exposed farmworkers and has pre-positioned antiviral drugs and vaccines should the risk change. On the animal side, the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service and state officials continue to report H5N1 in poultry and dairy cattle. Recent updates highlighted new confirmations in dairy herds in states such as Texas and Idaho, as reported by CIDRAP News, with affected farms placed under quarantine and milk from sick cows diverted or destroyed. USDA maintains that pasteurized commercial milk remains safe, as infected milk is kept out of the supply. Internationally, the World Health Organization notes that H5N1 remains entrenched in wild birds and poultry across multiple regions, with sporadic spillover into mammals including cows, cats, and marine mammals. WHO says the virus has shown the ability to infect a wider range of species, which is concerning for pandemic risk, but stresses that current human infections are rare and not efficiently spreading between people. Researchers continue to study how the virus adapts. Recent experimental work highlighted by journals such as the Proceedings of the National Academy of Sciences and ScienceDaily has examined H5N1 strains from U.S. dairy outbreaks, including their ability to spread in mammal models like ferrets, to better gauge the threat and guide vaccine development. Public health agencies emphasize basic precautions: avoiding contact with sick or dead birds, not consuming raw milk or undercooked poultry, and promptly reporting unusual animal illness. Thanks for tuning in, and come back next week for more. This has been a Quiet Please production, and for more from me, check out QuietPlease dot A I.