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COVID-19 Vaccine Response in Pediatric Oncology Patients
Brittni Kam1, Yiwen Wang2, FeiFei Qin2
1Department of Pediatrics, Stanford University, Stanford, California, USA.
Abstract:
Pediatric oncology and hematopoietic stem cell transplant (HSCT) patients may fail to mount an appropriate immune response to COVID-19 vaccinations. The immunologic response to initial SARS-CoV-2 vaccination was studied in 93 pediatric patients with hematologic malignancy, solid tumors, or post-HSCT. The majority of patients who were not receiving chemotherapy showed a positive humoral and cell-mediated response to COVID-19 vaccination. In contrast, variable responses to vaccination were seen in patients receiving chemotherapy. Patients with a normal lymphocyte count showed higher rates of seroconversion than their lymphocytopenic counterparts. This report details pediatric oncology and HSCT patients' immunologic responses to COVID-19 vaccination during all phases of treatment.
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