From July to August 2011, 500 HIV-infected and 132 HIV-uninfected participants those met the eligibility criteria were enrolled and tested for protective antibodies to measles, mumps, and rubella.~All participants who had no protective antibody to at least one of the three viruses were recruited to vaccinate for MMR vaccine. Between June to September 2012, 249 HIV-infected and 46 HIV-uninfected adults were vaccinated. Antibodies to MMR were measured at week 8-12, and week 48 after vaccination, which were completed in August 2013. The results were ready for analysis in March 2014.
This is a prevalence study of protective antibodies to measles, mumps, and rubella (MMR) in HIV-infected adults and HIV-uninfected controls. MMR vaccination were provided to both groups who had no protective antibodies to at least one of the three viruses.