measles immunization

measles immunization A vaccine for measles only. Single-virus vaccines are sometimes used in children with known or suspected brain disorders or compromised immune systems, and they are generally given after 1 year of age. For other children, the measles vaccine is usually administered as a multivirus vaccine (MMR or MMRV) along with vaccines for mumps, rubella, and varicella in the case of the MMRV. See also MMR; MMRV.