ACE2 and infection: Particular attention was drawn to polymorphism of ACE2 in bat (considered to be a reservoir of SARS-CoV-related virus; Zhou et al., 2020; Wacharapluesadee et al., 2021) this species, and in minks (because they have been shown to be susceptible to infection by SARS-CoV-2 from humans and then to be a source of the virus being able to reinfect humans; Boklund et al., 2021; Oude Munnink et al., 2021; Shuai et al., 2021).