article_snippet: China that has spread into people may have the potential to .
article_snippet: in chickens across China, the researchers said.
article_snippet: The expansion of genetic diversity and geographical spread . indicates that, unless effective control measures are in place, .
article_snippet: Hong Kong, Malaysia and Canada, killing 212 of at least 571 people in China, Taipei, according .
article_snippet: Guan of Hong Kong university monitored the evolution and spread .
article_snippet: become established in chickens and have spread across China, probably because of poultry trade movement, A large number of new genetic variants of the virus said.