Researchers are searching through an Italian graveyard in hopes of finding DNA belonging to the Vibrio cholerae strain that swept through the region in 1850, LiveScience reports.

In an apparent bid to halt the epidemic, villagers in Badia Pozzeveri in Tuscany treated cholera victims in lime when burying them. This, Stephanie Pappas notes at LiveScience, preserved the victims' bones and possibly also the DNA of the bacteria infecting them.

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While gene therapies may have high price tags, they could be cheaper than the cost of managing disease, according to MIT's Technology Review.

Researchers are looking for markers that indicate which cancer patients may respond to immunotherapies, the Associated Press writes.

In Nature this week: paternal age associated with de novo mutations in children, and more.

Nature News writes that researchers are still wrangling over the role of the p-value.