ACE2 and COVID-19: Due to the Neanderthal introgression observed in 3p21 locus as risk to COVID-19 (Zeberg and Pääbo, 2020), we compared mean probability of Neanderthal LA between the ACE2-network SNP set (mean = 0.032) and 1,000 randomly selected SNP sets with comparable genomic features (range of Neanderthal LA means = 0.027–0.036).