THE AUTHOR REPLIES

I thank Dr. Korman (1) and Drs. Peiffer-Smadja and Costagliola (2) for their observations. Dr. Korman’s thesis is that no available treatments are effective in preventing hospitalization for the overwhelming majority of coronavirus disease 2019 (COVID-19) patients and that potential hazards are associated with use of hydroxychloroquine (HCQ) plus azithromycin (AZ) (1). The studies I reviewed (3) contradict this. Dr. Korman superficially describes the same studies that I discussed at length, except with negative adjectives and numerous terms in quotation marks to imply, without evidence, their lack of validity. He calls all of...