Whist not disputing what other forum members have mentions they seem to have overlooked the following:-
"Recently, it was shown that a haplotype in a region on chromosome 3 is associated with becoming critically ill upon infection with the novel severe acute respiratory coronavirus 2 (SARS-CoV-2) (19) and was contributed to modern humans by Neandertals (20). Each copy of this haplotype approximately doubles the risk of its carriers requiring intensive care when infected by SARS-CoV-2. It reaches carrier frequencies of up to ∼65% in South Asia and ∼16% in Europe, whereas it is almost absent in East Asia. Thus, although this haplotype is detrimental for its carriers during the current pandemic, it may have been beneficial in earlier times in South Asia (21), perhaps by conferring protection against other pathogens, whereas it may have been eliminated in East Asia by negative selection."
When I read the full PDF article I came to the conclusion the Haplotype on chromosome 12 (the one most here seem to be commenting on) is responsible for the lower risk for those of us outside of Africa but the Haplotype on chromosome 3 is the one which affects mainly those in South Asia and Europe increasing the risks of severe infection.
There are other chromosomes involved not just the main two I have mentioned and I readily admit this is a very simplistic summing up of a complex study.
Cheers
Guy
