This Week in PLOS

In PLOS One, a University of Washington-led team considers relationships between the gut microbial communities in Kenyan children and those in their surrounding environment. Using 16S ribosomal RNA sequencing, the researchers assessed microbes in fecal samples from almost 200 children in more than 150 households in western Kenya. They also profiled microbes in hundreds of household surface swabs, 158 cattle fecal samples, and 158 chicken swabs.

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 Senator Lamar Alexander (R-Tenn.), who chairs the Senate health committee, will be retiring at the end of his term, Stat News reports.

The Wall Street Journal reports on the US Centers for Disease Control and Prevention's use of genetic approaches to study foodborne illnesses.

UCSF researchers find that having two X chromosomes may contribute to women's longer lifespans, according to Discover's D-brief blog.

In PNAS this week: immune cell profiling of wild baboons by social status, metabolomics profiling of esophageal tumors, and more.