1. Frank P Mora Frank P Mora United States says:

    Also on an epithelial cell membrane, along with ACE2, is heparan sulfate and is a SARS-CoV-2 S-glycoprotein RBD  alternate binding site. That is why Heparin binds to SARS_CoV-2 and neutralizes It because it is so like heparan sulfate.
    Then, when innate immunity is delayed (normal?) the virus infects epithelial cells in the lungs resulting in thrombosis. What is effective for thrombosis? Heparin.

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