Fig. 1.

Annual incidence of outpatient measles cases, Germany, 2007–2011

Note: Incidence was estimated using two data sources – the mandatory notification system and the Associations of Statutory Health Insurance Physicians (ASHIP) – and expressed as the number of cases per million population and the number of cases per million residents with statutory health insurance, respectively.

Incidence ratios were calculated by dividing the incidence estimated from the ASHIP data by the incidence derived from the notification data.