Depending on the questions asked in future work, there are mouse models available on the basis of transgenic expression of human ACE2 (required for overt infectious pathology of SARS-CoV in mice), there are established NHP models available of SARS-CoV infection in M. fascicularis and C. aethiops, and early reports suggest symptomatic infection in M. mulatta and M. fascicularis models for SARS-CoV-2 (Bao et al., 2020, McCray et al., 2007, Munster et al., 2020, Rockx et al., 2020, Smits et al., 2011). This evidence concerns the gene ACE2 and severe acute respiratory syndrome.