The H5N1 killed 54 people in Vietnam, Thailand and Cambodia. The CDC is worried because American Airlines now goes to Vietnam and could bring back unknown humans with the flu into the United States. Bird flu last year in Japan caused over 300,000 chickens to be exterminated. There was one human case of bird flu in Japan last December but no one has died of Bird Flu in Japan in decades. Still no one is taking this lightly. There has been a fast response and definite plan in Japan; the kind of reaction you might find from our own CDC here in the United States on such matters. Bird Flu is a serious issue and the World Health Organization and First World Countries throughout the world are taking notice.