Bacterial load in lungs according to diets.

<p>Bacterial load in lungs assessed as the ratio of the number of bacteria recovered from each mouse and the number of bacteria injected after a first PA infection. Each open circle represents one mouse fed the control diet; each black circle represents one mouse fed the pAOS diet. Bars represent median values. Dotted lines indicate differences between each day of infection within each dietary mice group; solid lines indicate differences between the pAOS and control mice groups on the same day; The p-values are based on the MannWhitney U test. *, <i>P</i><0.05; **, <i>P</i><0.01.