…igh ACE2 expression. But in the past month, two additional receptors of SARS-CoV-2 were discovered. One is neuropilin-1, which is highly expressed in the respiratory and olfactory tacts, specifically in cell types that SARS-CoV-2 preferentially infects. The second is CD147 (also called basigin), which is highly expressed in T-cells and bronchial cells in the lungs. This clarifies why Covid-19…