I mean blood type is literally molecules exposed on the outside of blood cells. I believe they are exposed on other cells, not just on blood cells. Viruses bind

I mean blood type is literally molecules exposed on the outside of blood cells. I believe they are exposed on other cells, not just on blood cells. Viruses bind to receptors on the cell wall in order to infiltrate the cell. Perhaps the A blood type receptor makes it easier for the virus to enter?