Food and Drug Administration

The proposal had been years in the making, in an effort to curb death rates of Black smokers targeted by Big Tobacco. In an election year, the president’s worries about support among Black voters may have influenced the postponement.

There is no evidence that the milk is unsafe to drink, scientists say. But the survey result strongly hints that the outbreak may be widespread.

Pivmecillinam, which has been used in Europe for decades, will become available next year to women 18 and older.

“There’s a fine line between one person and 10 people with H5N1.”

A single spillover, from a bird to a cow, led to the infections, a review of genetic data has found.

A number of new tech companies want to solve the opioid crisis with algorithms. It’s a flawed and potentially harmful proposition.

A new product for preventing cavities doesn’t have F.D.A. approval or promising clinical trials, but it does have customers.

Prosecutors said Keith Berman falsely claimed he had invented a blood test that could detect Covid-19 in 15 seconds. His lawyer said he had put “genuine effort” into developing such a test.

Results of a large clinical trial found the treatment did not work any better than a placebo.

A lawsuit that restricts a widely used abortion drug is unlikely to be the last challenge to Americans’ reproductive freedom.