SSPE due to wild virus has been reported in persons who have been immunized with measles vaccine and have no history of symptomatic natural measles infection.

在接受麻疹免疫接种者和无天然麻疹感染史者中，野病毒引起的SSPE病例一直有报告。

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The neutralization antibody levels for measles vaccine virus and wild measles virus in sera of measles patients in acute phase and convalescent phase were determined by trace neutralization test.

用微量中和试验测定麻疹病人急性期和恢复期血清中和麻疹疫苗株和野毒株的中和抗体水平。

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Measles vaccine is a live attenuated vaccine, vaccination against measles virus can stimulate the body to generate antibodies that protect the body from infection.

麻疹疫苗属减毒活疫苗，接种后可刺激机体产生抗麻疹病毒抗体，保护机体免遭感染。

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In May 2010 in a study involving 275 children vaccinated with the MMR vaccine, who demonstrated regressive autism and bowel disease, the Wake Forest University School of Medicine reported that of the 82 so far tested 70 proved positive for measles virus all of which was the vaccine measles strain none were wild measles strains.

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There is now a huge cohort of children who are not protected and this has allowed the measles virus to circulate - often infecting babies who are too young to have had the MMR vaccine.

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Twenty years after the global outbreak of AIDS, no one has developed an effective vaccine against the HIV virus, a far more cunning foe than polio, smallpox or measles.

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