Well no evidence has pointed out that authorities knew about a new virus from test results on November 17th. While information trickled out in January of a virus outbreak to the free world outside, inside China any information about it was covered up and any news reporting about it was forbidden. I visited China on January 18th for example, and literally NO ONE had heard about it! When finally the Wuhan lockdown happened media was allowed to report about a new virus outbreak. It is this cover-up that is the source of the world pandemic.