Fig. 4
From: SARS-CoV-2: preliminary study of infected human nasopharyngeal tissue by high resolution microscopy
Confocal microphotograph of immunofluorescence staining of SARS-CoV-2 in epithelial cells of the nasal mucosa. A Sample of PCR-negative individual (negative control); B Sample of PCR-positive. White arrows point the virus antigen cluster coat the cell membrane and yellow arrows point the virus cluster in cell-free space. Bars 20 µm