This Week in PNAS

In the early, online edition of the Proceedings of the National Academy of Sciences, a Stanford University-led team presents a blood-based, cell-free DNA-based approach for getting a glimpse at the microbes in the human body. The researchers did massive shotgun sequencing of cell-free DNA circulating in 1,351 blood samples from 156 heart, lung, or bone marrow transplant patients, or from 32 pregnant women, uncovering thousands of contigs from poorly characterized microbes.

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Consulting company McKinsey says diagnostics companies will have to combine genomic data analysis, electronic medical records, effective reimbursement strategies, and regulatory compliance in order to win.

A new report has found that researchers in Africa are still heavily dependent on funding from organizations in the US, Europe, and China, Nature News says.

An article in The Atlantic argues that the progress being made in science isn't keeping pace with the money and time being spent on research.

In Science this week: a CRISPR screen identifies sideroflexin 1 as a requisite component of one-carbon metabolism, and more.