A team of scientists say it is "beyond reasonable doubt" the Covid pandemic started with infected animals.

Zhang Zhan spent four years in jail after providing critical coverage of the response to Covid-19.

Zhang Zhan's condition is unclear several days after her scheduled release from jail.

Zhang Zhan had been in jail for four years for "picking quarrels and provoking trouble".

A declassified report finds no direct evidence the virus came from a lab, but adds it can't be ruled out.

The man who led China's pandemic response says inquiries into its origins should consider everything.

Fang Bin was one of several "citizen journalists" who reported from the epicentre of the pandemic.

Genetic data released by China three years after it was gathered has provided 'the best evidence' of how the pandemic started, scientists say.