ACE2 and infection: It has been recently stated that species carrying a sequence with K31, Y41, N90, and K353 in ACE2 could be classified as highly susceptible to infection by SARS-CoV-2 (including human, nonhuman primates, and bats) while others should be less susceptible to infection except if the virus adapts to a second receptor for cellular binding and entry (Devaux et al., 2020).