The World Health Organization said all hypotheses for the origin of the Covid-19 pandemic are still on the table, after US authorities this week backed the theory that the virus originated from a lab.
“If any country has information about the origins of the pandemic, it is essential for that information to be shared with WHO and the international scientific community,” WHO Director-General Tedros Adhanom Ghebreyesus said in a press briefing on Friday.
Tedros has called repeatedly for more transparency from China, and on Friday he said it will be impossible to be sure about the origins of the virus until authorities there share data. A joint WHO-China team has said a spread from wild animals is far more likely than a leak out of a human lab — an assessment FBI Director Christopher Wray contradicted this week.