Consistent with previous reports (Aschenbrenner et al, 2020Preprint; Hadjadj et al, 2020; Kuri-Cervantes et al, 2020; Mathew et al, 2020), we observed global loss of lymphocytes among CD45+ cells and enrichment of the myeloid cell compartment in the peripheral blood of COVID-19 patients compared with healthy donors (Fig 1C, top). The gene discussed is PTPRC; the disease is COVID-19.