The spike protien binds to ace2 receptors, so the immune response may be more likely to bind to ACE2, which also binds to ace2 receptors, but that isn't a given

The spike protien binds to ace2 receptors, so the immune response may be more likely to bind to ACE2, which also binds to ace2 receptors, but that isn't a given because the part on the spile the immune response targets don't have to themselves match with parts of ACE2.