Bird Flu update for 02-21-2025

As of the last 48 hours, the bird flu situation, particularly the H5N1 avian flu, continues to be a significant public health concern globally, with a notable impact in the United States. In the U.S., the H5N1 avian flu outbreak remains widespread, affecting wild birds and poultry across the country. As of February 20, 2025, the CDC has reported 12,064 wild birds detected with the virus, and 51 jurisdictions have confirmed bird flu in wild birds. The outbreak has also affected dairy cows, with cases reported in 16 states. The total number of poultry affected has risen to 162,770,988[1]. There have been recent human cases, with the total number of confirmed human cases in the U.S. now standing at 70. Two new hospitalizations were reported, one in a woman from Wyoming who was hospitalized in Colorado, and another in a patient in Ohio. Most human cases have been mild, but there has been one reported death in the U.S., involving a patient over 65 with underlying medical conditions[2]. The CDC and health officials are closely monitoring the situation, particularly because some cases have been detected in individuals who did not report direct exposure to infected animals. For instance, three U.S. veterinarians working with cattle were found to have antibodies for H5 avian flu despite no reported exposures to infected animals[2]. Globally, other strains of avian flu are also causing concern. In China, two adults were recently infected with the H9N2 avian flu, marking a departure from the typical pattern of mostly mild cases in children. These cases involved a 72-year-old woman and a 56-year-old woman from Guangdong province, with symptoms starting in late December 2024 and January 2025, respectively[3]. The public health risk from bird flu is currently considered low, but there is ongoing vigilance due to the potential for the virus to mutate into a more easily transmissible form among humans. Health officials emphasize the importance of continued monitoring and adherence to protective measures, especially for those working with or around birds and other animals that could be infected[1][4][5]. In summary, while the number of human cases remains relatively low, the widespread nature of the outbreak in animals and the potential for mutation make it a situation that requires continued attention and caution.