A PHASE 4 STUDY USING A TEST-NEGATIVE DESIGN TO EVALUATE THE EFFECTIVENESS OF A 20-VALENT PNEUMOCOCCAL CONJUGATE VACCINE AGAINST VACCINE-TYPE RADIOLOGICALLY-CONFIRMED COMMUNITYACQUIRED PNEUMONIA IN ADULTS </= to 65 YEARS OF AGE

14854B7471015OpenA PHASE 4 STUDY USING A TEST-NEGATIVE DESIGN TO EVALUATE THE EFFECTIVENESS OF A 20-VALENT PNEUMOCOCCAL CONJUGATE VACCINE AGAINST VACCINE-TYPE RADIOLOGICALLY-CONFIRMED COMMUNITYACQUIRED PNEUMONIA IN ADULTS </= to 65 YEARS OF AGENCT05452941IndustrialAdultObservationalOtherWortmann, GlennMedStar Health and GUMC; Medstar Washington Hospital Center : Morgan RussMedStar Medical & Surgical Research Network16124Morgan RussMorgan RussMorgan.Russ@Medstar.net2026.1.0 Build 16 <a href="https://advarra.com" target="_blank">© 2026 Advarra, Inc.</a>