In an RCT of 1,500 healthcare workers
"Pre-exposure prophylaxis with hydroxychloroquine once or twice weekly did not significantly reduce laboratory-confirmed Covid-19"

HCQhttps://twitter.com/Lauren_J_MacK/status/1317879423190757376 …
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https://nyulangone.org/news/most-adults-lupus-or-common-types-arthritis-have-similar-risks-getting-admitted-hospital-other-patients-covid-19 … Very early on I remember looking at internal data showing those on HCQ for other conditions still coming into the hospital. Was just curious about off label. Looks like NOT a solid prophylaxis.
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