A bird flu outbreak can happen at “any time”
“A global flu epidemic strikes every 20 to 50 years, and it is now more than 20 years since the last outbreak, Zhong Nanshan, director of the Guangzhou Institute of Respiratory Diseases, said according to the Xinhua news agency . . .
. . .’If a person contracts human flu and bird flu at the same time, it may speed up the mutation of the virus inside his body and enable bird flu to spread easily from human to human,’ he said, according to the paper.” (image via Yahoo! News)
