As Dr. Risch has researched it, virtually every good collection of observational data shows h/z/a to be in the realm of 85% in preventing hospitalizations and deaths. There have been zero RCTs to date performed on vulnerable patients within 5-7 days of symptom onset.
The Great Fauchino says such observational data are useless - from what I have researched, a minority opinion in the medical profession - and therefore cannot be used.
So the questions are, at the very least, don't you think RCTs should have been performed on vulnerable patients within 5-7 days of symptom onset? And why should the observational data be discounted when his own NIH website says, if done correctly, they provide valuable insight?