EPCAM and COVID-19: Further examination of the colocalization between the cellular markers EpCam, Iba-1, and RBC (by hemoglobin autofluorescence) indicates that macrophages had a high Panx-1 protein expression (Figure 7I, Iba-1 to Panx-1, p = 0.001) and RBC (Figure 7I, RBC to Panx-1, p = 0.0025, n = 9 cases with six sections per individual) in COVID-19 patients analyzed by the Pearson's colocalization index.