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How the Search for Covid-19 Treatments Faltered While Vaccines Sped Ahead

Health care unions amplify the voices of frontline workers overwhelmed by pandemic conditions.

Which Covid Vaccine Should You Get? Experts Cite the Effect Against Severe Disease

The W.H.O. drops opposition to vaccinations for pregnant women.

The W.H.O. drops opposition to vaccinations for pregnant women, aligning with the C.D.C.

Health care unions amplify the voices of frontline workers overwhelmed by pandemic conditions.

New story in Science and Health from TIME: The Biden Presidency Could Fundamentally Change the U.S. Space Program

Johnson & Johnson’s Vaccine Offers Strong Protection but Fuels Concern About Variants

Pregnant women receive conflicting advice on vaccines.

Novavax’s Vaccine Works Well — Except on Variant First Found in South Africa

New story in Science and Health from TIME: Agnes Kalibata, the UN’s Food Systems Chief, on How Science Can Transform Farming to Help Save the Planet

How the Coronavirus Turns the Body Against Itself

Researchers found more evidence that the variant from South Africa can evade antibodies.

Cómo funciona la vacuna Gamaleya

Aetna Agrees to Expand Coverage for Gender-Affirming Surgeries

Aetna Agrees to Expand Coverage for Gender-Affirming Surgeries

A vaccine ad invokes the culture of Mardi Gras to reduce hesitancy.

Moderna Says Vaccine Still Protects Against Virus Variants

A vaccine ad invokes the culture of Mardi Gras to reduce hesitancy.

Fauci on What Working for Trump Was Really Like

To Promote Vaccines, New Orleans Dances With Its Heart on Its Sleeve

Welcome to the Graveyard of New Year’s Resolutions

Do Curfews Slow the Coronavirus?

Pfizer Will Ship Fewer Vaccine Vials to Account for ‘Extra’ Doses

Pfizer Will Ship Fewer Vaccine Vials to Account for ‘Extra’ Doses

Biden Inherits a Vaccine Supply Unlikely to Grow Before April

Drug Prevents Coronavirus Infection in Nursing Homes, Maker Claims

F.D.A. Approves Monthly Shots to Treat H.I.V.

Cómo funciona la vacuna de Moderna

Cómo funciona la vacuna de Pfizer-BioNTech

Biden Inherits a Vaccine Supply Unlikely to Grow Before April

Drug Prevents Coronavirus Infection in Nursing Homes, Maker Claims

Amid One Pandemic, Students Train for the Next

Emerging Coronavirus Variants May Pose Challenges to Vaccines

Hahn Leaves F.D.A.; Woodcock Named Acting Commissioner

Exit Interview: C.D.C. Head Redfield Reflects on His Time on the Job

Could a Smell Test Screen People for Covid?

New California Variant May Be Driving Virus Surge There, Study Suggests

Inside the B.1.1.7 Coronavirus Variant

Twins with Covid Help Scientists Untangle the Disease’s Genetic Roots

Children’s Screen Time Has Soared in the Pandemic, Alarming Parents and Researchers

How to (Literally) Drive the Coronavirus Away

C.D.C. Warns the New Virus Variant Could Fuel Huge Spikes in Covid Cases

Need a New Knee or Hip? A Robot May Help Install It

Biden Picks Former F.D.A. Chief to Lead Federal Vaccine Efforts

What Does a More Contagious Virus Mean for Schools?

Coronavirus Cases Surge in Arizona

Some Medical Students Celebrate With Covid Vaccine Selfies as Others Wait in Line

U.S. to Require Negative Virus Tests From International Air Passengers

Doctor’s Death After Covid Vaccine Is Being Investigated