"As Wuhan’s Coronavirus poses an increasing global threat, more and more experts from various countries have also cast more attention to the source of the new crown virus (COVID-19 or SARS-CoV-2). In this scientific investigation on the mysterious origin of Corona virus, we explore the sources of New Coronavirus from five major areas, including epidemiological investigation, virus gene comparison, cross-species infection research, key “intermediate hosts” and the findings on the Wuhan P4 lab, to provide readers with a deep and completely scientific perspective."

This paper is a little more scientific than most but should still be able to be read by most readers.

https://greatgameindia.com/covid19-files-scientific-investigation-on-mysterious-origin-of-coronavirus/#E_Protein