IMMUNITY MEASLES VIRUS IN DIVERSE POPULATION GROUPS

Population immunity to measles in the United States, 1999.

To estimate population immunity, we examined measles immunity among residents of the United States in 1999 from serological and vaccine coverage surveys. For persons aged >or=20 years, serological data from the third National Health and Nutrition Examination Survey (1988-1994) were used. For persons <20 years of age, immunity was estimated from results of the National Immunization Survey (1994-...

Excessive Attenuation of Measles Virus as a Possible Cause of Failure in Measles Immunization

Virus counterdefense: diverse strategies for evading the RNA-silencing immunity.

Viruses are obligate, intracellular pathogens that must manipulate and exploit host molecular mechanisms to prosper in the hostile cellular environment. Here we review the strategies used by viruses to evade the immunity controlled by 21- to 26-nt small RNAs. Viral suppressors of RNA silencing (VSRs) are encoded by genetically diverse viruses infecting plants, invertebrates, and vertebrates. VS...

Pathogenesis of vaccine strains of measles virus in suckling hamsters

Cultivation of measles virus in sheep kidney cells