Effectiveness of the recombinant zoster vaccine in adult patients with multiple sclerosis: A claims-based retrospective cohort study in the United States.
OBJECTIVES To assess vaccine effectiveness (VE) of the recombinant zoster vaccine (RZV) in adults with multiple sclerosis (MS). METHODS This retrospective study included adults aged ⩾18 years with MS insured by Medicare or one of seven United States (US) commercial health insurers from January 2018 to September 2023....