Oral bacteria create a 'fingerprint' in your mouth

The bacteria in the human mouth -- particularly those nestled under the gums -- are as powerful as a fingerprint at identifying a person's ethnicity, new research shows.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/health_medicine/dentistry/~3/_5Ap81GjQc0/131023183246.htm

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