Since its first appearance in the United States in 2014, the bird flu virus has steadily spread, moving from wild birds to farm animals and then to humans. With growing concerns about the disease, researchers at the University of Washington School of Medicine have developed an innovative nasal spray vaccine. It can stop the infection at the virus's point of entry, preventing it from reaching the lungs and reducing its spread among animals and people. Since 2022, more than 70 people have been infected in the United States, with two deaths reported. Scientists warn that the virus continues to have opportunities to adapt in ways that allow it to spread more easily among people, raising fears of a future pandemic.
