Mink and the Coronavirus: What We Know

What Does ‘Negative’ on a Coronavirus Test Really Mean?

President Trump Says He’s ‘Better’ From Covid-19. Doctors Aren’t So Sure.

Trump’s Treatment Suggests Severe Covid-19, Medical Experts Say

F.D.A. Requires Stronger Warning Label for Xanax and Similar Drugs

Virus Update

2 Stylists Had Coronavirus, but Wore Masks. 139 Clients Didn’t Fall Sick.

239 Experts With 1 Big Claim: The Coronavirus Is Airborne

DNA Linked to Covid-19 Was Inherited From Neanderthals, Study Finds

Can an Algorithm Predict the Pandemic’s Next Moves?

The Pandemic Claims New Victims: Prestigious Medical Journals

Scientists Question Validity of Major Hydroxychloroquine Study

Temperature Checks and Desk Shields: C.D.C. Suggests Big Changes to Offices

‘We Loved Each Other’: Fauci Recalls Larry Kramer, Friend and Nemesis

Coronavirus Does Not Spread Easily on Surfaces, C.D.C. Says

App Shows Promise in Tracking New Coronavirus Cases, Study Finds

Coronavirus Antibody Tests: Can You Trust the Results?

Millions of Children Are at Risk for Measles as Coronavirus Fears Halt Vaccines

Trump Urges Coronavirus Patients to Take Unproven Drug

With Minimal Evidence, Trump Asks F.D.A. to Study Malaria Drugs for Coronavirus