Increased interest in developing drugs for rare diseases is leading some trials to struggle to attract participants, writes Amy Dockser Marcus at the Wall Street Journal.

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Helix customers can purchase apps that interpret different aspects of their genome, Technology Review reports.

The New York Times reports that a number of companies and research institutes are pursuing gene therapies.

Salmon with shorter telomeres survive to make the trip back to their river homes, New Scientist reports.

In PLOS this week: vaginal microbiome composition, population patterns of Chagas-carrying Rhodnius ecuadoriensis, and more.