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We thank Teh et al for their interest in our study reporting on the course of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) COVID-19 in a case series of patients with systemic lupus erythematosus (SLE) under long-term treatment with hydroxychloroquine (HCQ).1 2 Teh et al report in detail the clinical course of COVID-19 in five patients with SLE in Malaysia. All patients were women, 50 years old on average, under long-term HCQ treatment, and the majority were suffering from comorbidities such as hypertension, obesity or diabetes. All patients presented with moderately severe to severe COVID-19; one patient died and another needed invasive ventilation. In this respect, the series of patients with SLE infected with SARS-CoV-2 described by Teh et al resemble other series previously reported by our group and others, encompassing a low number of patients, often hospitalised, with a majority of women in their 50s suffering from various comorbidities and an occasional severe or even lethal clinical evolution.1 3 However, these case series do …
Handling editor Josef S Smolen
Contributors AM and ZA wrote the manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient and public involvement Patients and/or the public were not involved in the design, conduct, reporting or dissemination plans of this research.
Provenance and peer review Commissioned; internally peer reviewed.