Seroprevalence and Incidence of Measles, Mumps, and Rubella in Adult Solid Organ Transplant Recipients in the United States: A Large Database Analysis

Overall, posttransplant MMR infections in adult SOT recipients were uncommon in this data set, and no vaccine-associated infections were documented among those who received the MMR vaccine within 30 d pretransplant in real-world practice. The primary limitation of this study is that most MMR infections were identified using ICD codes without confirmation through serological testing or polymerase chain reaction, and we were unable to further characterize the infections because the de-identified database lacked information on the patient's ZIP code and transplant hospital. Our study highlights the need for improvement in MMR serology screening and pretransplant MMR vaccination.