Histopathological Lung Findings in COVID-19 B.1.617.2 SARS-CoV-2 Delta Variant.

The histopathological lung findings in the B.1.617.2 Delta variant are similar to those previously described in COVID-19. Spike protein-binding antibodies were identified immunohistochemically both on alveolocytes and in the endothelial cells, showing the potential of indirect damage from thrombosis.