Scientists find another H7-type flu virus in Chinese chickens
PARIS (AFP) - Scientists studying the H7N9 bird flu virus that has killed more than 40 people since March said on Wednesday they had discovered another H7-type virus lurking in chickens in China.
Dubbed H7N7, the virus was able to infect mammals in a lab experiment, said the team, which warned H7 viruses "may pose threats beyond the current outbreak".
"The continuing prevalence of H7 viruses in poultry could lead to the generation of highly pathogenic variants and further sporadic human infections," they wrote in the journal Nature.
According to the World Health Organisation, there have been 135 confirmed cases of people contracting H7N9 bird flu, of whom 44 died. All the cases were in China, except for one in Taiwan.