White House touts Covid-19 'lab leak' theory on new website

[58Sunliner]

19. Some viruses do have some dna, but not Covid. What they do look for in dna extractions are the markers of the virus-

in human dna.

The argument regarding the shared genetics of the viruses still are relevant.
".. the zoonotic origin of SARS-CoV-2 is not established. In particular, the bat viruses most closely related to SARS-CoV-2 were sampled from animals in Yunnan province, over 1,500 km from Wuhan. There are relatively few bat coronaviruses from Hubei province, and those that have been sequenced are relatively distant to SARS-CoV-2 in phylogenetic trees (Lin et al., 2017). The simple inference from this is that our sampling of bat viruses is strongly biased toward some geographical locations. This will need to be rectified in future studies. In addition, although sequence similarity values of 96%–97% make it sound like the available bat viruses are very closely related to SARS-CoV-2, in reality this likely represents more than 20 years of sequence evolution".

https://www.sciencedirect.com/science/article/pii/S0092867420303287