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H.I.V. Groups Warn of Privacy Risks in How C.D.C. Tracks Virus Samples

Philips Suspends U.S. Sales of Breathing Machines After Recall

Europe Faces a Measles Outbreak

Workplace Wellness Programs Have Little Benefit, Study Finds

What Happens When There Is No Food: Experts Say Severe Malnutrition Could Set in Swiftly in Gaza

Scientists Scramble to Keep Dog Aging Project Alive

An Ultrasound Experiment Tackles a Giant Problem in Brain Medicine

The F.D.A. Warned an Asthma Drug Could Induce Despair. Many Were Never Told.

F.D.A. to Issue First Approval for Mass Drug Imports to States From Canada

Ozempic and Wegovy Users Had Less Risk of Suicidal Thoughts in Large Study

Florida Health Official Calls for Halt to Covid Vaccines

What Parents Should Know About Tongue-Tie Releases

Inside the Booming Business of Cutting Babies’ Tongues

Michael Stone, Psychiatrist and Scholar Who Studied Evil, Dies at 90

New Drugs Can Fix Teenage Obesity, but Young People Don’t Get Them

Why Haven’t More Older Adults Gotten the R.S.V. Vaccine?

F.D.A. Approves Sickle Cell Treatments, Including One That Uses CRISPR

Scientists in Discredited Alcohol Study May Advise U.S. on Drinking Guidelines

U.S. Health Officials Push Back on Idea of New Virus in China

Climate Change Drives New Cases of Malaria, Complicating Efforts to Fight the Disease