Bacteria On Your Fingertips Could Identify You
by Joe Palca
March 16, 2010
Researchers were able to correctly match bacterial DNA on keyboards and computer mice with their individual users. This bacterial "fingerprint" could become a new forensic tool, though it's not yet ready for the courtroom.
We all have bacteria growing on our skin — lots of bacteria. Now, scientists have shown that the kind and number of bacteria growing on our fingertips can be used to distinguish one person from another. And these differences could be used as a forensic tool, since we leave behind some of these bacteria when we touch things, and those bacteria can be used for identity purposes.
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