Dozens of companies and researchers are focusing on developing products aimed at altering the human microbiome, New Scientist writes. The Janssen Human Microbiome Institute's Dirk Gevers tells it that there's more than a billion dollars invested in the field.

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Microsoft co-founder Paul Allen also contributed to brain research, NPR reports.

The New York Times reports on the shifting interpretations of what some genetic variants mean over time.

MIT's Technology Review reports on Genentech's pursuit of personalized cancer vaccines.

In Cell this week: investigation of metastatic tumor evolution, more than 16,000 genetic variants introduced into the budding yeast model organism, and more.