করোনাভাইরাস কিভাবে তৈরি হলো? Where Do New Viruses COVID-19 Come From?

করোনাভাইরাস কিভাবে তৈরি হলো? Where Do New Viruses COVID-19 Come From?
Coronavirus or COVID-19 is a pandemic in the present world. We all know this name. What is a virus? Where does it come from How is it made? lets startCoronavirus or COVID-19 is a pandemic in the present world. We all know this name. What is a virus? Where does it come from How is it made? lets startCoronavirus or COVID-19 is a pandemic in the present world. We all know this name. What is a virus? Where does it come from How is it made? lets start