Fig. 3From: Comparative analysis of humoral immune responses and pathologies of BALB/c and C57BL/6 wildtype mice experimentally infected with a highly virulent Rodentibacter pneumotropicus (Pasteurella pneumotropica) strainQuantitative determination of R. pneumotropicus in TNL and lungs of the indicated mice surviving experimental infection (a) and pathogen-specific IgA-levels in TNL (b). Medians are marked by the horizontal line. The non-parametric Mann-Whitney test was used for statistical analysis (** for P ≤ 0.01)Back to article page