I don't know about that part, but it is a critical piece as
Posted on: April 21, 2020 at 22:47:42 CT
JeffB
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it is the key that unlocks entry into the cells.
If I recall it attaches to ACE2 proteins, which are found in many organs in the body, and is a reason it can attack so many organs... lungs, heart, kidneys, vascular system, gastrointestinal system, nervous system, including the brain, and others as well.