OP has no idea what he's talking about. Initially, there was a model. However, the first SARS-CoV-2 isolate was obtained in the 3rd/4th week of January from an outbreak in the South of Germany, which was one of the first isolates outside of China (Thailand isolated the virus around the same time, very early into the pandemic).

Edit: sorry, it wasn't OP, it was the idiot that doesn't know what a PCR test is. OP has no idea though, either.

OP has no idea what he's talking about. Initially, there was a model. However, the first SARS-CoV-2 isolate was obtained in the 3rd/4th week of January from an outbreak in the South of Germany, which was one of the first isolates outside of China (Thailand isolated the virus around the same time, very early into the pandemic).