Fig. 2
From: Difference in virulence between Neisseria meningitidis serogroups W and Y in transgenic mice
a: Amount of bacteria (CFU/mL) in blood 3 h and 24 h post-infection with N. meningitidis serogroup W and Y isolates. The bars represent the median and 95% confidence interval. Differences between and within serogroups were compared using a Mann-Whitney test. *** indicates the level of the significant difference between serogroup W infected mice compared to serogroup Y infected mice (p < 0.0001). b: Amount of the proinflammatory cytokine CXCL1 in ng/mL detected in blood of N. meningitidis serogroup W and Y infected mice after 3 h and 24 h. The bars represent the median and 95% confidence interval. Differences between and within serogroups were compared using a Mann-Whitney test. *** indicates the level of the significant difference between serogroup W infected mice compared to serogroup Y infected mice (p < 0.0001)