To the Editor:
We read with interest the report by Favalli, et al on the incidence of the coronavirus disease 2019 (COVID-19) in Italian patients with connective tissue diseases1. None of the 61 patients with systemic lupus erythematosus (SLE) surveyed was confirmed to have COVID-19. This is in contrast to the initial analysis of the COVID-19 Global Rheumatology Alliance registry, which shows an overrepresentation of SLE in patients with rheumatic diseases who have been diagnosed with COVID-192 …
Address correspondence to Dr. H. So, Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Room 114042, 9/F, Lui Che Woo Clinical Sciences Building, Prince of Wales Hospital, Hong Kong. Email: hoso{at}cuhk.edu.hk.