This Week in PLoS

Australian researchers led by Cathy Jensen looked into whether SNPs associated with risk of multiple sclerosis also affect the severity of the disease. To do so, they genotyped seven SNPs in more than a thousand people with MS and correlated that with clinical outcome measures such as age of onset, MS severity score, and the time interval between first demyelinating event and first relapse. The researchers found no association between those clinical outcomes and the SNPs under study.

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Five researchers are to share this year's Albany Medical Center Prize for their work on the CRISPR/Cas9 gene-editing tool, the AP reports.

Stat News reports on how white supremacists cope with surprising genetic ancestry testing results.

In Genome Research this week: sex-biased gene expression evolution in malaria mosquitos, method to find ancient selective sweeps, and more.

Iceland has nearly eliminated Down syndrome from its population, CBS News reports.