Yes, ACE2 is both on cells and free floating in the bloodstream....

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    Yes, ACE2 is both on cells and free floating in the bloodstream. When attached to a cell it acts as a receptor (see below). No one knows what the primary role of this receptor is for? Therefore, it is logical to assume that if you program the immune system to recognise and kill one thing that plugs into it, it will also kill the other things that plug into it.


 
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