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The Spiky Blob Seen Around the World

These Doctors Have Specialties. Fighting Coronavirus Wasn’t One of Them.

How Long Will Coronavirus Live on Surfaces or in the Air Around You?

When an Epidemic Looms, Gagging Scientists Is a Terrible Idea

Coronavirus Patient in California Was Not Tested for Days

Top Dogs, Top Docs: Minding the Muscles at Westminster

Chicago Woman Is Second Patient in U.S. With Wuhan Coronavirus

Surgeon General Says ‘Shocking’ Portion of People Aren’t Told to Stop Smoking

It’s Not Just Poor White People Driving a Decline in Life Expectancy

‘Public Option’ Draws Voters Unsure About ‘Medicare for All’

What to Know About the Landmark Opioid Trial Starting Monday

Juul Violated Federal Rules by Marketing Vaping Products as Safer Than Cigarettes, F.D.A. Says

First Death in a Spate of Vaping Sicknesses Reported by Health Officials

Their Mothers Chose Donor Sperm. The Doctors Used Their Own.

Colorectal Cancer Rises Among Younger Adults

Intensive Anti-H.I.V. Efforts Meet With Mixed Success in Africa

A Better Way to Manage Your Period? Try the Menstrual Cup, Scientists Say

In Hawaii, Rat Lungworm Disease Infects People but Eludes Researchers

‘It’s Gigantic’: A New Way to Gauge the Chances for Unresponsive Patients

Eager to Limit Exemptions to Vaccination, States Face Staunch Resistance