The Spread of TB

The growth and spread of Mycobacterium tuberculosis parallels that of the human race, a new study in PLOS Pathogens says. The University of Wisconsin-Madison's Caitlin Pepperell and her colleagues examined sequence data from more than 60 TB strains to search for evidence of positive and negative selections as well as any regional differences in selection.

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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.