U Meksiku potvrđena smrt čovjeka zaraženog ptičjom gripom - postoji li razlog za zabrinutost?

Znanstvenici i zdravstvene vlasti su na oprezu budući da postoje znakovi da ptičja gripa mutira kako bi se lakše proširila među ljudima. Iz Svjetske zdravstvene organizacije su objavili da je smrt jednog čovjeka u Meksiku prouzročio novi soj ptičje gripe koji nikada prije nije uočen među ljudima.

FILE - In this Oct. 21, 2015, file photo, cage-free chickens walk in a fenced pasture at an organic farm near Waukon, Iowa. Some farmers are wondering if it's OK that eggs sold as free-range come from chickens being kept inside. It's a question that arises lately as farmers try to be open about their product while also protecting chickens from a highly infectious bird flu that has killed roughly 28 million poultry across the country. (AP Photo/Charlie Neibergall, File) Credit: Charlie Neibergall/AP