This Week in Science

In Science this week, a team led by University of Tubingen researchers report the sequencing and analysis of the genomes of medieval and modern Mycobacterium leprae, the pathogen responsible for leprosy, using ancient skeletons and existing patients. They found that the bacterium has not changed much genetically over the past millennium, with only about 800 mutations occurring among the 16 genomes examined, and that strains from the Americas most likely originated in Europe.

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Magdalena Skipper, the incoming editor-in-chief of Nature, speaks with NPR's Weekend Edition Sunday.

Genetic genealogy has led to an arrest in another cold case, dating back to 1987.

In PLOS this week: mutation in second gene widens clinical symptoms of people with ADD3 mutations, comparative genomic analysis of Pseudovibrio, and more.

Wired reports that 23andMe is trying to bolster its outside collaborations.