HCQ fails to prevent severe COVID19 in 17 SLE pts (w/ CKD, GN, APL, 12 pred, 7 on immunosuppressants).14 hospitalized, 13 viral pneumonia, 11 respiratory failure, 5 ARDS; 3 ARF. Despite good HCQ levels, 2 died, 5 on ventilator, 36% D/C, 1/2 still hosp. https://t.co/e0qLGtF6Nj