Figure 1.

Box and whiskers plots showing the effect of probiotic yoghurt containing Bifidobacterium lactis Bb12® on faecal excretion of secretory IgA and human beta-defensin-2. The middle line represents the median, the box represents the interquartile range and the whiskers represent the total range. Faecal IgA excretion significantly increased during after probiotic yoghurt feeding and returned to normal levels after cessation of the probiotic.

Kabeerdoss et al. Nutrition Journal 2011 10:138   doi:10.1186/1475-2891-10-138
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