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Nightly News
Study: parents’ saliva stimulates baby’s immune system
Catch up with NBC News Clone on today's hot topic: Study Parents Saliva Stimulates Babys Immune System 29119555795 - Breaking News | NBC News Clone. Our editorial team reformatted this story for clarity and speed.
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A Swedish study published in the journal Pediatrics found children exposed to their parents’ saliva were less likely to develop allergies than those who weren’t. NBC’s Brian Williams reports.May 6, 2013
