Introduction
The COVID-19 pandemic caused by ‘Severe acute respiratory syndrome coronavirus 2’ (SARS-CoV-2A) was first described at the end of 2019 and have spread all over the world. Although elderly and people with comorbidities are the most affected by the severe manifestations of the disease, COVID-19 seems to affect children to a lesser degree.1 Data concerning the impact of COVID-19 on hematopoietic stem cell transplant (HSCT) patients are scarce and variable. There are few reports – mostly from adults- regarding risk of COVID-19-associated complications secondary to immunosuppressive therapy or delayed immune reconstitution at the post-transplant period.2 However, little is known about children and adolescents with HSCT. Here, we report an adolescent patient who was diagnosed with COVID-19 after hematopoietic stem cell transplantation and had graft-versus-host disease (GVHD) triggered by COVID-19.