The World Health Organization indicated: excrement is the main channel for the spread of bird flu.
The World Health Organization（WHO）said in 16th, there were last 4 people dead of bird flu in Vietnam caused by the transmission of the poultry excrement, not the cooked meat.
According to reports of Agence France-Presse, WHO said the H5N1 bird flu virus in the chicken droppings will spread in the air, and being taken away by the wind. Keep the chicken on cages with narrow layers; it is easy for the chicken to spread bird flu through their droppings. And the chicken keeper also has the danger of inhaling the virus. However, the WHO spokesman Delesha Musayyib said, it is almost impossible to be infected of the consumption of cooked ill chicken. He emphasized that cooked the chicken before picking their feather could also eliminate the virus.
WHO warned that, no matter what kind of the diseased chickens the people contacted with, the dangerous are equal. Only a small amount of infected poultry could survive, and those who survived could also produce the excretion of the virus at least in 10 days.
In a bird flu investigation reports issued by WHO in the 15th, the bird flu virus occurred in Japan, Korean, and Vietnam was the H5N1 virus of group A.
