There is still no evidence of SARS-CoV-2 laboratory origin: Response to Segreto and Deigin (10.1002/bies.202100137)

The causative agent of COVID-19 SARS-CoV-2 has led to over 4 million deaths worldwide. Understanding the origin of this coronavirus is important for the prevention of future outbreaks. The dominant point of view that the virus transferred to humans either directly from bats or through an intermediate mammalian host has been challenged by Segreto and Deigin, who claim that the genome of SARS-CoV-2 has certain features suggestive of its artificial creation. Following their response to our commentary, here we continue the discussion of the proposed arguments for this hypothesis. We show that neither the existence of a furin cleavage site in SARS-CoV-2, nor the presence of specific sequences within the nucleotide insertion encoding that site are evidence for intelligent design. We also explain why existing genetic data, viral diversity and past human history suggest that a natural origin of the virus is the most likely scenario. Genetic evidence suggesting otherwise is yet to be presented.

Automated summary

The causative agent of COVID-19, SARS-CoV-2, has caused over 4 million deaths worldwide. While there are claims that suggest artificial creation of the virus, existing genetic data, viral diversity, and human history point towards a natural origin. Further genetic evidence supporting an alternative theory is yet to be presented.