Ongoing rubella outbreak among adolescents in Salaj, Romania, September 2011–January 2012

A rubella outbreak has been ongoing in Salaj, Romania since September 2011 involving 1,840 probable and confirmed cases among mainly unvaccinated adolescents. The index case had onset of illness on 6 September 2011. The highest number of cases was recorded among 10-14-year-olds and 15-19-year-olds. Complications were recorded for 11 cases and included meningitis and arthritis. Although the peak has passed, surveillance is being maintained in the region.