免费av毛片,日韩av高清在线播放,97国产精品最好的产品,欧美成人免费一区二区三区,神马午夜一区,曰河南少妇对白视频,欧美自拍视频

CHINA> National
Mutation of A/H1N1 flu found on Chinese mainland
(Xinhua)
Updated: 2009-11-25 19:59

BEIJING: Genetic mutation had been detectedin eight A/H1N1 flu cases on the Chinese mainland, an official with the Chinese National Influenza Center said here Wednesday.

Shu Yuelong, director of the center, said in an interview that the mutated virus was not resistant to drugs and could be prevented by vaccines.