Oct 17, 2013 5:07 PM by NBC News
New research reveals today's teenagers may be more susceptible to the herpes virus.
The CDC study suggests because fewer teens are exposed in their childhood to HSV1, the strain of herpes that causes cold sores, they lack the antibodies that protect them from the virus when they become sexually active.
Blood samples from 14 to 19-year olds showed a 23% drop in antibodies for HSV1 over the past decade.
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