This Week in PLOS

In PLOS One, researchers with Chronix Biomedical and other centers in Göttingen, Germany, report on a method used to track down canine cancer markers and later detect them in circulating, cell-free DNA in the dogs' blood. The group identified and verified copy number shifts and structural glitches in five mammary carcinoma tumors from three subtypes using sequencing and digital droplet PCR, respectively.

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The Associated Press reports that the US government wasted $341,000 on travel by former Health and Human Services Secretary Tom Price.

Women who post YouTube science videos get more critical comments and more comments about their appearance than male video hosts, the New York Times reports.

The Wall Street Journal writes that participating in genetic research brings up the specter of past research ethics lapses for some African Americans.

In PLOS this week: sequences influencing yeast prion aggregation or degradation, dengue virus genetic variants affect transmission dynamics, and more.