ACE2 and COVID-19: Several recent studies have highlighted COVID‐19 related symptoms in organs expressing high levels of ACE2, including gastrointestinal symptoms (Guan et al, 20202020), renal failure (preprint: Cheng et al, 20202020; preprint: Wang et al, 2020a), cardiac injury (Huang et al, 20202020; preprint: Hui et al, 2020a; Zheng et al, 20202020), and effects on male gonadal function (preprint: Ma et al, 20202020).