This study is testing a new vaccine called VAX-31 in healthy infants to see if it is safe and how well it helps their bodies build protection against pneumococcal bacteria. About 905 infants will receive four doses of either VAX-31 or an existing vaccine (PCV20) along with their …
Phase: PHASE2 • Sponsor: Vaxcyte, Inc. • Aim: ⭐️ VACCINE ⭐️
Last updated Mar 02, 2026 15:24 UTC