>>19866689It's not the number of receptors that really matters, but the electrostatic interaction between receptors and S protein. Most races attract to varying degrees, East Asians the least out of those.
A small group actually has ACE2 receptors that electrostatically repel the S protein.
Also, East Asians smoke like chimneys, and nicotine blocks ACE2 which may be a major factor - most westerners quit.