The thing is like this. On September 15, 2020, in a Fox News program in the United States, Yan Limeng once again claimed that "the new coronavirus was man-made by the Chinese." He even said brazenly: On December 31 last year, there was " "Friends" introduced to him the situation of "human-to-human transmission" of the virus. She and her mainland colleagues had been discussing the coronavirus, and then suddenly everyone went "silent."