1. Tummy Time: The Infant Microbiota–IgA Connection
Tyler A. Rice, Noah W. Palm 
Cell Host & Microbe 
Volume 20, Issue 1, Pages 6-8 (July 2016)
DOI: /j.chom
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2. Figure 1
Maturation of the Gut Microbiota and Immune Response from Birth into Childhood
The studies of Planer et al. (2016) reveal the patterns of maturation of the gut microbiota and the immune response to the microbiota in healthy humans from birth to age 3. During this period, the major source of IgA in breast-fed babies transitions from passively acquired, maternal IgA in breast milk to infant, host-derived IgA; this change naturally also coincides with the transition to solid foods. While the dramatic change in diet during this transition clearly contributes to maturation of the microbiota, Planer et al. (2016) also find that intrinsic features of specific bacterial taxa often dictate the IgA responses that are observed.
Cell Host & Microbe  , 6-8DOI: ( /j.chom )
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