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Virologie

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Live attenuated measles vaccine as a potential multivalent pediatric vaccination vector Volume 9, issue 5, septembre-octobre

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Authors
Unité des virus lents, CNRS URA 1930, Institut Pasteur, 25, rue du Docteur-Roux, 75015 Paris

Live attenuated RNA viruses make highly efficient vaccines. Among them, measles virus (MV) vaccine has been given to a very large number of children and shown to be highly efficacious and safe. MV vaccine induces a life-long immunity after a single or two low-dose injections. It is easily produced on a large scale in most countries and can be distributed at low cost. Reversion to pathogenicity has never been observed with this vaccine. For all these characteristics, MV vaccine might be a very promising vector to immunize children against both measles and other infectious agents such as HIV or flaviviruses, in the developing world. In this article, we describe recent data demonstrating the capacity of recombinant Schwarz measles virus to express proteins from Human Immunodeficiency or West Nile viruses, and to induce specific immune responses able, in the case of West Nile virus, to protect from an experimental challenge.