After Washington casts doubts on the WHO investigation in China to find the origin of the coronavirus, a WHO official has said the American intelligence claims, "Frankly wrong."

The WHO mission in China ended without finding the source of the coronavirus. But members had to walk a diplomatic tightrope during their stay, with the US urging a “robust” investigation and China warning against politicizing the issue.

Peter Daszak, a member of the WHO team in China said the gloomy geopolitics covers the origin of the pandemic. 

"Joe Biden has to look tough on China," he said via Twitter, “Please don’t rely too much on US intel: increasingly disengaged under Trump & frankly wrong on many aspects.”

"Happy to help WH w/ their quest to verify, but don’t forget it’s “TRUST” then "Verify"," he wrote.

His comments were linked to an article referencing US Department of State comments that cast doubt over the transparency of China’s co-operation with the WHO mission.

Department of State spokesman Ned Price said the White House “clearly supports this investigation”, but shared criticism that China concealed information.