Immunization, Vaccines and Biologicals


27 February 2015

Children wave their vaccination cards

An updated position paper on Japanese encephalitis (JE) vaccines published in today’s edition of the Weekly Epidemiological Record focuses on new information concerning the availability, safety, immunogenicity, and effectiveness of JE vaccines and the duration of protection they confer. This updated version replaces the 2006 JE vaccines position paper.

Fact sheets

Fact sheets on vaccines and immunization

Millennium Development Goals

Immunization's contribution to reaching the Millennium Development Goal on child survival

News archive

Immunization newsroom stories featured over the last five years

Immunization highlights

An overview of key achievements by WHO and partners in the area of immunization. Now published annually


Calendar of key immunization events and features on vaccine and report launches, exhibits and advocacy efforts

Communication products

Key resources and other documentation pertinent to our immunization work