Immunization, Vaccines and Biologicals
The Immunization, Vaccines and Biologicals department is responsible for targeting vaccine-preventable diseases, guiding immunization research and establishing immunization policy.
WHO position papers on Pneumococcus
26 September 2025
WHO position paper: Pneumococcal conjugate vaccines in infants and children aged <5 years – September...
In accordance with its mandate to provide normative guidance to Member States on health policy matters, WHO issues a series of regularly updated position...
This concept note, on pneumococcal vaccination in older adults, is a departure from a traditional position paper. This is because, while data were...
Additional materials
GRADE tables (grading of quality of scientific evidence) for WHO position papers on pneumococcus (PPV23)
Tables showing levels of quality of the scientific evidence (LSE) for key conclusions/recommendations:
LSE for using PPV23 in pregnancy
pdf, 33kb
pdf, 33kb
Additional summaries of information related to WHO position papers on pneumococcus
Duration of Protection and Revaccination
pdf, 108kb
pdf, 108kb