This Week in PLOS

In PLOS Genetics, researchers from the US, the UK, and Yemen used new and existing genome-wide SNP profiles for individuals in Yemen and other regions in the Horn of Africa to consider the possibility that there were historical migrations back to Africa. Indeed, their analyses indicated that individuals in the Horn of Africa tend to have both African and non-African ancestry that is distinct from present-day non-African populations in the region.

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360Dx reports that the US Centers for Medicare & Medicaid Services would cover next-generation sequencing-based cancer panel tests.

The Washington Post reports that a meteorologist is being considered as presidential science and technology advisor.

In PNAS this week: precision medicine strategy to screen for disease risk, genome evolution in Haemophilus influenzae, and more.

Researchers have developed a PCR-based assay to gauge whether manatees are present in waters.