Japanese Encephalitis Vaccines: WHO position paper, February 2015--Recommendations.

This article presents the World Health Organization's (WHO) recommendations on the use of Japanese Encephalitis (JE) vaccines excerpted from the WHO position paper on Japanese Encephalitis vaccines recently published in the Weekly Epidemiological Record [1]. This updated position paper on JE vaccines replaces the 2006 position paper on this subject [2]; it focuses on new information concerning the availability, safety, immunogenicity and effectiveness of JE vaccines and the duration of protection they confer. Recent data on global prevalence and burden of disease caused by JE and cost-effectiveness considerations regarding JE vaccination are also summarized. Footnotes to this paper provide a number of core references including references to grading tables that assess the quality of the scientific evidence. In accordance with its mandate to provide guidance to Member States on health policy matters, WHO issues a series of regularly updated position papers on vaccines and combinations of vaccines against diseases that have an international public health impact. These papers are concerned primarily with the use of vaccines in large-scale immunization programmes; they summarize essential background information on diseases and vaccines, and conclude with WHO's current position on the use of vaccines in the global context. This paper reflects the recommendations of WHO's Strategic Advisory Group of Experts (SAGE) on immunization. These recommendations were discussed by SAGE at its October 2014 meeting. Evidence presented at the meeting can be accessed at http://www.who.int/immunization/sage/previous/en/index.html.