or
It seems that question may be answered in this lengthy but well written archived article/essay for the layman. "Covid-19 had us all fooled, but now we might have finally found its secret" helps to comprehend the mechanics of covid-19 and the reason ventilators fail while the HCQ/azythromicin/zinc cocktail seems to work quickly in addressing this virus in many cases.
Credit to this doc who publicly said, stop!, this is not ARDS.
This may not seem like it's linked at first but it is
A Double-Inactivated Severe Acute Respiratory Syndrome Coronavirus Vaccine Provides Incomplete Protection in Mice and Induces Increased Eosinophilic Proinflammatory Pulmonary Response upon Challenge