Abstract

Patients with hematologic conditions have a higher risk of severe COVID-19 and COVID-19-related death. This is related to immune deficiencies induced by hematologic conditions and/or the treatment thereof. Prospective vaccine immunogenicity studies have demonstrated that in the majority of patients, a 3-dose COVID-19 vaccination schedule leads to antibody concentrations comparable to levels obtained in healthy adults after a 2-dose schedule. In B cell depleted patients, humoral responses are poor, however vaccination did induce potent cellular immune responses. The effect of 3-dose vaccination schedules and COVID-19 booster vaccinations on the protection of patients with hematologic malignancies against severe COVID-19 and COVID-19 related death remains to be confirmed by population-based vaccine effectiveness studies.
Original languageEnglish
Pages (from-to)192-197
JournalSeminars in Hematology
Volume59
Issue number4
Early online date2022
DOIs
Publication statusPublished - 2022

Keywords

  • COVID-19
  • Hematologic malignancies
  • Hematology
  • Immunocompromised
  • SARS-CoV-2
  • Vaccination

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