Figure 1: Number of IMD cases reported to NNDSS compared with laboratory confirmed data from the AMSP, Australia, 2016 This Figure shows both the number of cases of invasive meningococcal disease (IMD) reported to National Notifiable Diseases Surveillance System and the number of laboratory confirmed cases of IMD, in Australia, per annum, 1991-2016. The red line represents the number of laboratory confirmed cases of IMD reported to the Australian Meningococcal Surveillance Programme; the blue line represents the number of cases of IMD reported to National Notifiable Diseases Surveillance System.