Table 2. Competitive indices (CI) of ΔmsrA, ΔmsrB and ΔmsrAΔmsrB versus wild type on day 3 post infection.

Strains	CI liver 3 days p.i.	P-value*	CI spleen 3 days p.i.	P-value*
ΔmsrA vs. WT	0.16±0.03	<0.05	0.24±0.07	<0.05
ΔmsrB vs. WT	1.13±0.06	<0.05	1.12±0.09	>0.05
ΔmsrAΔmsrB vs. WT	0.23±0.09	<0.05	0.13±0.05	<0.05

*P-values were calculated using the Wilcoxon Signed Rank Test to test whether the actual median differs significantly from 1 (theoretical median). CIs are shown as medians ± standard deviation.