Figure 3.

Representative serial immunostaining for CD10, 2019-nCov N-Protein, and CD31 on postmortem kidney biopsies from a patient with coronavirus disease 2019 (COVID-19). Serial sections of kidney samples from patients with COVID-19 were used for immunostaining against the proximal tubule marker, CD10 (in black) (A); the 2019-nCov N-Protein (in red) (B); and the endothelial marker, CD31 (in brown) (C). A punctuate pattern for the 2019-nCov N-Protein is detected at the basolateral pole of CD10-negative and CD31-negative distal tubule (*) (patient 9). No specific signal is detected in CD31-positive peritubular capillaries (arrow). Scale bars = 20 µm