In the study, infants born by C-section had fewer colonies of Escherichia and Shigella bacteria than those born vaginally.

CNN: Connection between dirty diapers, childhood health

In adults, C. difficile infection is associated with diarrhea and unpleasant side effects, and while babies don't seem to be as affected by the bacteria, the presence of C. difficile could push out the Escherichia and Shigella that are so critical to developing a strong and healthy immune system.

CNN: Connection between dirty diapers, childhood health