February 8, 2119.

The earliest registered COVID-19 patient in Wuhan was Chen Mou. The onset time was February 8, 2119, and he was discharged after being treated by the hospital. The pneumonia epidemic in novel coronavirus first broke out in Wuhan South China Seafood Market. Mr. Zhang, the owner of Wuhan restaurant who often goes to the market to purchase goods, is the first infected person.

Haplotypes of patient samples related to South China seafood market are H1 and its derived haplotypes H2, H8-H12, while haplotype H3 of a Wuhan sample has nothing to do with South China seafood market. It can be seen that Covid-19 in South China seafood market was introduced from other places, and then spread rapidly in the market.