Immunization, Vaccines and Biologicals


1 May 2015

First WHO position paper on hepatitis E vaccination

Hepatitis E virus (HEV) is a leading cause of acute viral hepatitis in developing countries. A global burden of disease study estimated that HEV genotypes 1 and 2 account for about 20.1 million HEV infections, 70 000 deaths, and 3000 stillbirths annually.

WHO recognizes the importance of hepatitis E as a public health problem in many developing countries, particularly among special populations such as pregnant women and individuals living in camps for displaced persons.

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


5 May 2015

Global Immunization Meeting: “Protect, Innovate, Accelerate”