California declared an emergency over bird flu. How serious is the situation?
FILE -This colorized electron microscope image released by the National Institute of Allergy and Infectious Diseases on March 26, 2024, shows avian influenza A H5N1 virus particles (yellow), grown in Madin-Darby Canine Kidney (MDCK) epithelial cells (blue). (CDC/NIAID via AP, File) According to the U.S. Centers for Disease Control and Prevention, more than 60 people…
