Regarding the G8790A polymorphism of the ACE2 gene, in an ecological study involving Indian populations, Srivastava et al. (2020) [30] pointed to a correlation of the A allele with a lower rate of infection (r = −0.571; p = 0.021) and lethality (r = −0.699; p = 0.002) in patients affected by the disease. This evidence concerns the gene ACE2 and infection.