According to a recent study out of Johns Hopkins, clinical trials that pay participants attract mostly poor volunteers who join repeatedly, and may enroll in multiple trials at the same time. While there is no substitute yet for human trials, the long-term health effects of repeatedly volunteering remain murky, and it could also be risky for scientific clinical validation.

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CNBC reports that Amazon invested in the startup Grail as it sees an opportunity for its cloud computing company in genomics.

Lawrence Krauss writes at Slate that science is needed for good public policy and should not be ignored.

Researchers are working on re-making the yeast genome from scratch, according to the Associated Press.

In Cell this week: functional profiling of Plasmodium genome, a self-inactivating rabies virus, and more.