Why is there a cornavirus?

Some people have the cornavirus in this state and in this country.

Well in my opinoin it just turned on in one person got sick now it's spreading

Step-by-step explanation:

Several of the early cases had visited Huanan Seafood Wholesale Market and so the virus is thought to have a zoonotic origin. The virus that caused the outbreak is known as SARS-CoV-2, a newly discovered virus closely related to bat coronaviruses, pangolin coronaviruses, and SARS-CoV.

The scientific consensus is that virus has a natural origin. The probable bat-to-human infection may have been among people processing bat carcasses and guano in the production of traditional Chinese medicines.

There is a caronavirus because of us "human" this virus was mas made and created by man. This was all created because of over population. The Earth is dying and that means we will also die. So humans thought that if the amount of people on Earth went down then we would have a chance to survie. However this backfired because it is spreading and they have no idea how to cure it and or stop it from spreading.