The bacteria that cause dental caries ("cavities") are transmitted
mother-to-child as shown by DNA fingerprinting studies. How this occurs
is one of the questions were are investigating in a large, longitudinal
study of mother-child pairs. And before the question gets asked, yes,
there is a breastfeeding study component. The results will not be
available for another year or so.
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J. Paul Zimmer, Ph.D.
Developmental and Clinical Immunology
University of Alabama at Birmingham Medical School