The virus can only attach to ACE2 receptors in the body.
Hydroxychloroquine is just being used for its "zinc ionophore" effect - allowing a gateway in an infected cell for extra zinc to get into.
Zinc is what is stopping the virus. Hydroxychloroquine is a tool that helps increase its intercellular level.
Everything I have read about it agrees with that.
So why is the CDC doing tests minus the zinc?