The World Health Organisation on Tuesday played down fears over a strain of bird flu which has killed two people in China, but said it was crucial to find out how the virus infected humans.
“It's the first time that H7N9 was found in humans,” the UN health agency's spokeswoman Fadela Chaib told reporters, referring to the deadly strain of avian influenza.
“It is of concern to WHO and we will be following this with the health authorities in China to know more. But for the time being, it's only three cases and it has shown, for the time being, no human-to-human transmission,” she added.
China's National Health and Family Planning Commission said over the weekend that two men, aged 87 and 27, died in Shanghai in early March after being infected with H7N9 avian influenza.
The presence of the virus in the victims was only confirmed on Friday.
China is considered one of the nations most at risk from bird flu because it has the world's biggest poultry population and many chickens in rural areas are kept close to humans.
The more common H5N1 strain of avian influenza has killed more than 360 people globally from 2003 until March 12 this year, according to the WHO.
“There are a lot of unknowns about this H7N9 infection. We need to further investigate the extent of the outbreak, the source of the infection and the mode of transmission,” said Chaib.
“For that, China shares information with us, we share it with member states,” she added.AFP