This Week in PLOS

In PLOS One, researchers from Japan describe the 18S ribosomal RNA gene sequencing method they used to catalog the types of parasitic helminth worms present in the intestines of nine wild rats — seven from the Rattus norvegicus species and two R. rattus — sampled at either a downtown restaurant or a suburban zoo in the Japanese city of Miyazaki. All but one of the rats carried nematode worms in their intestine, the team notes.

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The New York Times profiles 23andMe's Anne Wojcicki and describes how she bounced back from a bad year.

Fotis Kafatos, the founding president of the European Research Council, has died, according to the Associated Press.

In PLOS this week: genomic analysis of honeybee disease, microRNA profiles of people with lupus nephritis, and more.

The Verge's Angela Chen tried out a gene test for fitness advice, but didn't learn much new information.