COVID-19 in patients with rheumatic disease in Hubei province, China: a multicentre retrospective observational study
Published rheumatology study shows HCQ may be protective against COVID-19.
"Patients with rheumatic disease who were taking hydroxychloroquine had a lower risk of COVID-19 infection." (p=0.04)
Notice only one drug below had a significant difference.
https://twitter.com/JamesTodaroMD/status/1279819201973288961
https://www.thelancet.com/journals/lanrhe/article/PIIS2665-9913(20)30227-7/fulltext
https://www.thelancet.com/action/showPdf?pii=S2665-9913%2820%2930227-7