SARS COV2 - Identikit di un killer (Identikit of a killer)

Where does Sars-Cov2 come from? How did a virus that most likely comes from a bat in the far south of China get to Wuhan, a city in the middle of the country, 1000 kilometres away ? What kind of research was done at the Wuhan Institute of Virology? Could this virus have come out of a laboratory