A Range of Risk

Personalized genetic tests may be flawed and have few health benefits, reports Ian Sample at the Guardian. Researchers from Erasmus University Medical Center in Rotterdam, the Netherlands, simulated genetic data from 100,000 people and then used 23andMe and DecodeMe's formulas to predict the risk of eight health conditions for that simulated population.

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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.