Fig. 3
From: Difference in virulence between Neisseria meningitidis serogroups W and Y in transgenic mice
Histogram overlays of apoptosis of immune cells in the peritoneal washes of infected mice. The apoptosis is displayed as fluorescence levels on the x-axis. Three isolates represent each lineageof the N. meningitidis serogroups. The data from infected mice were compared to data from two non-infected mice as controls. Serogroup W isolates are displayed in histogram a: non-infected mice (grey), original UK isolate (red), invasive 2013 strain isolate (blue), and nasopharynx/throat (NP) 2013 strain isolate (green). Serogroup Y isolates are displayed in histogram b: YI subtype 1 (blue), YI subtype 2 (green), cc23 other (red), and non-infected mice (grey). The percentages of cells in apoptosis and standard errors are displayed for each isolate as indicated by the corresponding colours