1. An additional symptom to be reported after the vaccine was parotitis, which occurred in less than 1% of children-usually between two and three weeks after the vaccine. Some of these cases may have resulted from natural infection, but the appreciable clustering suggests that they were probably caused by the vaccine. Many of the symptoms reported were trivial, but parents should be warned about the possibility ofa reaction a week after vaccination and reassured that the child will not come to harm and is not infectious. In 1987 three cases of meningoencephalitis were reported from Canada after the combined vaccine."I All recovered without sequelae.1" This was calculated to occur in one in 100 000 doses ofvaccine, which might mean six cases a year in Britain if uptake of the vaccine is as high as we hope. At the moment there are about 1000 cases a year of meningoencephalitis caused by mumps, some of which have an unfavourable outcome
2. Effect of selective vaccination on rubella susceptibility and infection in pregnancy;Miller, C.L.; Miller, E.; Sequeira, P.J.L.; Cradock-Watson, J.E.; Longson, M.; Wiseberg, E.C.;Br MedJ,1985
3. Rubella susceptibility and the continuing risk of infection in pregnancy;Miller, C.L.; Miller, E.; Waight, P.A.;BrMedJ,1987
4. National congenital rubella surveillance programme report: 1987. Communicable Disease Report 1988; No 15;Holzel, H.; Jones, G.; Smithells, R.W.; Sheppard, S.
5. Hearing loss due to mumps;Hall, R.; Richards, H.;Arch Dis Child,1987