美国科学60秒 SSS 2012-11-01

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Remnants of TB genes¹ can remain in and infect person’s bones for centuries. A team of UK researchers has been able to isolate² such TB sequences through an old skeleton using new rapid DNA³ sequencing. The proof of concept exercise was performed using the remains⁴ of a young woman buried in the 1800s. DNA sequencing showed that her strain matched one that circulated in the US a century ago. That match was based on tissue samples collected from a TB patient in upstate New York in 1905. The finding is on the Proceedings⁵ of the National Academy of Sciences.

 

Once older boned can be studied for this tale-tell genes, scientists might be able to get new insights into TB’s deadly moves and perhaps anticipate the/its next one.

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