Memory B cell responses induced by pneumococcal conjugate vaccine schedules with fewer doses: analysis of a randomised-controlled trial in Viet Nam.

ABSTRACT: The use of pneumococcal conjugate vaccine (PCV) schedules with fewer doses are being considered to reduce costs and improve access, particularly in low- and middle-income countries. While several studies have assessed their immunogenicity, there are limited data on their potential for long-term immune protection, as assessed by pneumococcal serotype-specific memory B cell (B_mem) responses. This current study reports secondary outcome data that aims to compare B_mem responses following reduced-dose (0 + 1 and 1 + 1) schedules of PCV10 and PCV13 in Vietnamese infants from our randomised-controlled trial (trial registration number NCT03098628). Following vaccination at 12 months of age, B_mem levels for most serotypes peaked seven days post-vaccination and were

SUBMITTER: Ong DS 

PROVIDER: S-EPMC11322157 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature