Possible third case of Bird Flu detected in the Central Valley KFSN-TV‘More serious than we had hoped’: Bird flu deaths mount among California dairy cows Los Angeles TimesH5N1 infects second farm worker in California as feds bolster vaccine supply University of Minnesota Twin CitiesPossible third human case of bird flu identified in California NBC Los AngelesTwo California dairy workers infected with bird flu, CDC says amid outbreaks in cows USA TODAY