JOURNAL ARTICLE
REVIEW

Guidelines for Plaque-Reduction Neutralization Testing of Human Antibodies to Dengue Viruses

John T Roehrig, Joachim Hombach, Alan D T Barrett
Viral Immunology 2008, 21 (2): 123-32
18476771
Through the Advisory Committee on Dengue and other Flavivirus Vaccines, the World Health Organization(WHO) has had a long-standing commitment to facilitate and to guide research and development of vaccines for medically important flaviviruses. Recently, the Paediatric Dengue Vaccine Initiative (PDVI) was formed to accelerate the development, testing, and introduction of dengue (DEN)vaccines worldwide, partnering with WHO in this important public health effort. There are now a variety of DEN vaccines in various stages of the developmental pipeline. In an attempt to make interlaboratory information more directly comparable, WHO with the support of PDVI initiated a program to coordinate the procedures used for the plaque-reduction neutralization test (PRNT). ThePRNT is the most common assay used to measure neutralizing antibody. The presence of antibody is believed to be most relevant means of determining protective anti-DEN virus (DENV) immunity. While other neutralizing antibody assays are being considered for use in large-scale vaccine field trials, the PRNT is still considered to be the laboratory standard against which other neutralizing antibody assays should be compared. The need for PRNT coordination has been identified at several consultations between the WHO and PDVI. A more complete version of these guidelines is available on the WHO website: http://www.who.int/immunization/documents/date/en/index.html.

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