RE: approx 5,000 were taking it and 189 got it (out of nearly 9,500 surveyed).
Some questions come to mind:
* What about the 9,500 - 5,000 = 4,500 ? Did they take nothing?
* Of the 5,000 - 189 = 4,811 who DID NOT get it, were they similarly exposed to Covid-19 as the other 189?
I don’t know
And Larry elder and others have been looking for data on people with Lupus and CV19...
also this doesn’t mention antibodies (previous exposure)
“* Of the 5,000 - 189 = 4,811 who DID NOT get it, were they similarly exposed to Covid-19 as the other 189?”
That is the key to drawing meaningful inferences about HCQ prophylaxis from the survey. Unfortunately, “similarly exposed” is impossibly to quantify in a post facto survey. The only conclusion I can see is that HCQ might have prevented coronavirus infection in somewhere between 0% and 93% of the survey respondents on HCQ. Hopefully clinical studies can narrow the range a bit. My guess is that HCQ combo’s work at a stage when the virus is already established in the system — rather than preventing infection in the first place.