Fig. 5
From: Difference in virulence between Neisseria meningitidis serogroups W and Y in transgenic mice
Percentage of apoptosis in Hec-1-B cells 3 h post-infection with serogroup N. meningitidis W and Y isolates. Lines represent the median and 95% confidence intervals. The comparison between and within serogroups was performed using a Mann-Whitney test. *** indicates the significant difference in apoptosis between mice infected with serogroup W isolates compared to serogroup Y infected mice (p<0.0001)