A vaccine against the herpes-simplex-2 virus, which causes genital herpes, protects some women, provided they haven’t had a genital or oral herpes infection before.
The vaccine consists of a molecule patterned after a protein that sits on the surface of the herpes-2 virus and a natural immune boosting substance called 3-O-deacylated monophosphoryl lipid A, says Lawrence Stanberry of the University of Texas Medical Branch in Galveston.
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