There is some substantial claim that WHO knew beforehand about the virus in Wuhan, but was forced to STFU by China.
Also, I feel that China is under-reporting their Covid-19 cases and deaths. 81,000+ cases for a country with a total population of 1.4 billion, 11 mil alone in Wuhan. Something's fishy with those numbers.
Not to mention the fact that some Wuhan residents have managed to evacuate to surrounding cities in Hubei province, futher spreading the virus in other parts of China.
There's also footage on some residents spitting on elevator buttons, spitting on passersby in the streets, spitting on doctors and nurses, etc.
People dropping like flies in the streets of Wuhan, and authorities welding doors shut to prevent infected people from living their homes.