Figure 4From: A changing picture of shigellosis in southern Vietnam: shifting species dominance, antimicrobial susceptibility and clinical presentation The distribution of Shigella species from three childhood shigellosis studies in southern Vietnam over fourteen years. The distribution of Shigella species from period A (n = 80), period B (n = 114) and period C (n = 103). The percentage of S. sonnei and S. flexneri are colored red and grey respectively, other Shigella species are colored black. The p value was calculated using the chi - squared test.Back to article page