HCQ worked!!
WWG1WGA
China virus survivor here. Got sick last week, tested positive, took the HCQ, Z pack, and zinc from frontline doctors and was better in two days. Still have some residual fatigue and congestion, but it's maddening how many lives this could have saved!
TL;DR: HCQ works.
I'm not a Dr. But remember, your brother was TOLD he had the China virus from a test that is roughly 90% inaccurate, and used by Dr's/Hospitals that are financially incentivized to diagnose FOR the China virus (they're paid even MORE if they get you on a ventilator).
Furthermore, influenza, pneumonia, and other coronaviruses (which the stupid PCR test picks up too) are fully capable of causing serious conditions in a person. There is no reason to think that the symptoms your brother experienced wouldn't have been caused from any of the already mentioned illnesses that may have been overlooked.