geneva the world health organizations emergencies chief said monday that it has received no evidence from the us government to back up allegations by president donald trump and secretary of state mike pompeo that the coronavirus could have originated at a laboratory in the chinese city of wuhanfrom our perspective this remains speculative michael ryan told reporters in genevawe have not received any data or specific evidence from the us government relating to the purported origin of the virushe said who would be very willing to receive any such information the us hasthe comments come as the trump administration has denounced both china and the un health agency for alleged missteps in handling the outbreak that first emerged in the city of wuhan and has now infected millions and killed at least 239000 peopletrump on friday said who was like the public relations agency for chinaryan reiterated that the evidence and advice that the un health agency has received suggest that the novel coronavirus is of natural origin even if pompeo and trump have alleged evidence they have seen suggests it could be from the wuhan institute of virology labif that data and evidence is available then it will be for the united states government to decide whether and when it can be shared ryan said but its difficult for who to operate in an information vacuum in that specific regardon sunday pompeo told abcs this week program that there was a significant amount of evidence that this came from that laboratory in wuhan ryan and maria van kerkhove the technical lead on the who emergencies program put their focus on the hunt for the animal host that is believed to have relayed the coronavirus from batssuch a determination could help drive public health policies like advising people to keep away from some types of wildlife or livestockthey said chinese scientists continued to work with the world against the pandemic and suggested such collaboration remained crucial and that efforts to investigate possible wrongdoing by chinese officials could derail such scientific cooperationwe need to understand that we can learn from chinese scientists we can learn from each other we can exchange knowledge and we can find the answers together ryan saidif this is projected as aggressive investigation of wrongdoing then i believe thats much more difficult to deal with thats a political issue that is not a science issue science will find the answers he addedthe implications of those answers can be dealt with from a policy and political perspective who heaped praise on china from early on in the outbreakon january 30 moments before announcing that the coronavirus was a global health emergency who directorgeneral tedros adhanom ghebreyesus said china was setting a new standard for outbreak response he praised the speed with which china detected the outbreak sequenced the genome and shared that information with whohe said its commitment to transparency was beyond wordsthe joint team said at the time that it was not probing any allegations that