Susceptibility to COVID‐19 in Patients Treated With Antimalarials: A Population Based Study in Emilia‐Romagna, Northern Italy

In study (n=4408), those on chloroquine/hydroxychloroquine had slightly higher probability (PB) of being tested vs general population, same PB of being diagnosed as having COVID‐19 & slightly lower PB of being +ve once tested, thus not supporting use as prophylaxis of COVID‐19.

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Arthritis & Rheumatology