Will Stone, a health correspondent, sheds light on the alarming rise of bird flu in the U.S. He discusses California's state of emergency and the increase in human cases, mostly mild for now. Concerns about the virus evolving into a more dangerous strain are significant, as experts fear potential pandemic risks. Stone also touches on global outbreaks, the unusual spread among mammals, and the government's cautious approach towards vaccine development using mRNA technology. He emphasizes the importance of public awareness while reassuring about the current low risk to health.