Tahereh Rostami - Department of Pediatric Cell Therapy, Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
Neda Alijani - Department of Infectious Diseases, Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
Azadeh Kiumarsi - Department of Pediatric Cell Therapy, Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
Soroush Rad - Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
Seied Amirhosein Mirhoseini - Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
Mohammadreza Rostami - Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
Amir Hesabi - Department of Pediatric Cell Therapy, Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
Seyed Ali Mousavi - Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
Seied Asadollah Mousavi - Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran

Hematopoietic stem cell transplantation (HSCT) severely undermines the recipients' immune status and makes them prone to complications following viral infection. Here, we report a ۳-year-old boy with mucopolysaccharidosis type VI who acquired SARS-CoV-۲ infection after HSCT. The boy was diagnosed with SARS-CoV-۲ during the post-transplant period (۱۹ days after HSCT) when dealing with acute graft versus host disease (GVHD). He was successfully treated with remdesivir and tocilizumab and recovered. Well-timed treatment with tocilizumab might reduce the risk of invasive mechanical ventilation and death in patients with severe COVID-۱۹ pneumonia in the early post HSCT period.

Post Hematopoietic Stem Cell Transplantation, COVID-۱۹, Mucopolysaccharidosis