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. 2019 Apr 24;9:124. doi: 10.3389/fcimb.2019.00124

Figure 4.

Figure 4

Presence of antigen I/II (AgI/II) promotes S. suis serotype 9 resistance to killing by whole blood. Resistance of wild-type, AgI/II-deficient mutant (ΔagI/II) or complemented (CΔagI/II) strains to the bactericidal effect of murine whole blood after 4 h of incubation. Percentage of bacterial survival was calculated in comparison to bacteria in plasma alone. Data represent the mean ± SEM (n = 4). *p < 0.01 indicates a significant difference between the wild-type strain and ΔagI/II mutant.