This Week in PNAS

In the PNAS Early Edition this week, researchers at the University of Victoria and the National Institute of Allergy and Infectious Diseases report that they've inserted nine "essential genes" from Arctic bacteria into mammalian pathogenic bacteria "to construct stable, temperature-sensitive bacterial vaccines." One ligA gene, the team writes, "was shown to render Francisella tularensis, Salmonella enterica, and Mycobacterium smegmatis temperature-sensitive." Three tempe

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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.