Fig. 2From: The impact of aggregating serogroups in dynamic models of Neisseria meningitidis transmissionPrevalence of carriage with MCV-4 vaccine. The prevalence of carriage with vaccine program 4 (a), 5 (b) and 6 (c) for the 4-strain model. The same plot with standard deviations of model outputs appears in Additional file 1: Figure S4Back to article page