... Addendum

Aside: at the outset of the COVID-19 pandemic my concern increased exponentially when I learned the SARS-CoV-2 enters human cells by binding to angiotensin-converting enzyme 2 (ACE2), a membrane protein found on most tissue types (not only lung) - making it far more dangerous than the common flu.

Tissue distribution of ACE2 protein, the functional receptor for SARS coronavirus. A first step in understanding SARS pathogenesis

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7167720/

#SARScov2 #COVID19 #ACE2