Figure 4: Number of PorA genotypes for serogroup B in cases of IMD, Australia, 2016 This Figure shows the number range and frequency of the PorA genotypes for cases of laboratory confirmed invasive meningococcal disease (IMD), Australia, 2016, where genotype data were available. The predominant PorA genotype for serogroup B IMD cases was P1.7-2,4, and this is similar to previous years.