Historians See Autocratic Playbook in Trump’s Attacks on Science

Authoritarians have long feared and suppressed science as a rival for social influence. Experts see President Trump as borrowing some of their tactics.

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What to Know About Jim O’Neill, the New Acting C.D.C. Director

The selection of Jim O’Neill, a former Silicon Valley executive, drew objections from Democrats, who noted his lack of medical or scientific training.

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Will the C.D.C. Survive?

Robert F. Kennedy Jr.’s assault may have dealt lasting damage to the agency, experts fear, with harsh consequences for public health.

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It’s a Night Light. It’s a Plant. It’s a Glowing Succulent.

In a proof of concept, researchers demonstrated that they could bioengineer a couple of hours of light into a common plant.

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How Bees Engineer Honeycombs on Rough Construction Sites

Honeycomb, a mathematical marvel, is made by worker bees. A new study shows that the insects are very good at adapting to wonky foundations.

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Scientists Perform First Pig-to-Human Lung Transplant

Researchers in China placed a lung from a genetically modified pig into a brain-dead man, with mixed results.

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Cities Move Away From Strategies That Make Drug Use Safer

San Francisco, Philadelphia and others are retreating from “harm reduction” strategies that have helped reduce deaths but which critics, including Trump, say have contributed to pervasive public drug use.

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What to Know About Plague After a New Case in California

It is not just a scourge of the Middle Ages. Plague still exists, though it is rare. Here’s what to look for and how to protect yourself.

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Cases of Mosquito-Borne Chikungunya Virus Are Surging Globally: What to Know

Chikungunya, which can disable victims for years, is spreading rapidly, including in China and other places that have not seen it before.

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A New Way to Reduce Children’s Deaths: Cash

Simply giving money to poor families at certain times reduced deaths among young children by nearly half, a new study found.

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