Uneasy Truce

People and their microbes have long coexisted, mainly in an uneasy peace. While bacteria can cause disease — Helicobacter pylori is behind gastric ulcers — the lack of bacteria is also being linked to disease, writes Michael Specter in this week's issue of The New Yorker. As little as 15 years ago, some doctors were saying that "the only good Helicobacter pylori is a dead Helicobacter pylori."

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The US Food and Drug Administration has approved Kite Pharmaceuticals' CAR T-cell therapy for large B-cell lymphomas, the New York Times reports.

Kaiser Health News reports that gene therapies could cost more than a million dollars.

Worcester Polytechnic Institute researchers have received a grant to combine biology and computer science for high school students.

In Nature this week: variants associated with obsessive-compulsive disorder, review of key CRISPR enzymes, and more.