29 August 2011, By Eryn Brown, Los Angeles Times / for the Booster Shots blog
Bird flu was in decline -- but health officials warned Monday that it appears to be on the rise again.
The United Nations' Food and Agriculture Organization (FAO) "urged heightened readiness and surveillance against a possible major resurgence" of the virus, which has crossed over from birds to infect 565 people and kill 331 of them since its appearance in 2003.
