Chinese officials have released genome data for the coronavirus traced to a recent cluster in Beijing, saying they noted similarities to a European strain.
China has shared the data with the World Health Organisation amid pressure to make the findings public.

This comes after Beijing reported nearly 200 fresh Covid-19 infections after months. Tens of thousands are being tested in the city, where neighbourhoods are under lockdown and schools shut. The cluster has been traced to a sprawling wholesale market in the city.

But scientists are cautious over drawing early conclusion about the link.
"It is possible that the virus now causing an outbreak in Beijing travelled from Wuhan to Europe and now back to China," Ben Cowling, a professor at the University of Hong Kong's School of Public Health, told AFP news agency.

But he added that patient zero hadn't been identified yet and that it may be too late to find out how the latest cluster started.