COVID‐19 in a patient with pre‐existing acute lymphoblastic leukaemia

Coronavirus disease 2019 (COVID-19) is a novel respiratory infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), newly discovered since December 2019.1-3 According to a World Health Organization situation report on April 1, 2020,4 a total of 823,626 cases and over 40,000 deaths had been documented globally, suggesting the situation was rapidly evolving into a pandemic. As reported by previous studies, patients with...