H5N1 Avian Flu Outbreak in Cattle Sparks Pandemic Fears

H5N1 Avian Flu Outbreak in Cattle Sparks Pandemic Fears

The H5N1 avian flu strain, now widespread in U.S. dairy cattle, is raising alarms about its potential to evolve into a human-transmissible virus. Scientists at the CDC report that bulk milk testing, mandated in June 2025, has identified infected herds earlier, but the virus’s spread among mammals remains a concern. Vaccine trials in cows are…