Federal health officials are worried that highly pathogenic avian influenza, or bird flu, is crossing several animal boundaries, and the third person to contract the disease last week had respiratory symptoms.
Bird flu s spread from poultry to cattle to humans provokes worry among feds, states yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.
Bird flu s spread from poultry to cattle to humans provokes worry among feds, states yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.
Bird flu s spread from poultry to cattle to humans provokes worry among feds, states yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.