Provisional figures on participation in the National Immunisation Programme According to RIVM’s registration system, at least 90% of babies have been vaccinated against mumps, measles and rubella (MMR).
Meningococcal disease serious, but still rare Meningococcal disease is a disease caused by a bacterium, the meningococcus. There are several types of this bacterium. In most cases, it does not make you ill.