The Corona-Virus is a totally new virus; it hasn't been seen before.
You can not prove that statement.
It's called a novel Corona Virus for a reason:
From the CDC: "What is a novel corona virus? "A novel corona virus is a new corona virus that has not been previously identified. The virus causing corona-virus disease 2019 (COVID-19), is not the same as the corona viruses that commonly circulate among humans and cause mild illness, like the common cold.
