But Pan Liewen also asked him to "silence". Malik Peiris, a chair professor at the School of Public Health of the University of Hong Kong, was also "aware of the incident" but took no action. Faced with the origin of the new crown, an issue that has been scientifically discussed internationally, Yan Limeng turned a deaf ear and shamelessly slandered and discredited China. What was her reason for doing this? Or who instigated her to do this?