by Royal College of Surgeons in Ireland (RCSI) Fig 1. SARS-CoV-2 binds to human epithelial cells and causes permeability. (A) SARS-CoV-2 (1.08 x 105 TCID50/mL) was added to either a control surface (BSA) or human epithelial cells (Caco 2). Cells were allowed to adhere to immobilized SARS-CoV-2 and lysed with pNPP, a fluorescent substrate against alkaline...
