In this video, Gabriela Hobbs, MD, Massachusetts General Hospital, Boston, MA, highlights some findings from a study which aimed to investigate the response of myeloproliferative neoplasm (MPN) patients to COVID-19 vaccination. Dr Hobbs first explains how patient samples were collected, and then discusses some of the positive results that were obtained, comparing both serologic and T-cell responses to vaccination in different patient cohorts. This interview took place at the 63rd ASH Annual Meeting and Exposition congress in Atlanta, GA, 2021.