Investigate

Lab Leak Fight Casts Chill Over Virology Research

Inside a High-Security Virus Lab

Biden Proposal Would Ban Online Prescribing of Certain Drugs

She Helped Unlock the Science of the Covid Vaccine

Happy Birthday, Omicron

What if You Could Go to the Hospital … at Home?

Lab Manipulations of Covid Virus Fall Under Murky Government Rules

Why Omicron Might Stick Around

The Quiet Cost of Family Caregiving

A.I. Predicts the Shape of Nearly Every Protein Known to Science

The pandemic kept many children less active around the world, researchers find.

The U.S. government will buy 3.2 million doses of Novavax’s Covid vaccine.

Think All Viruses Get Milder With Time? Not This Rabbit-Killer.

Two new versions of Omicron are gaining ground in the U.S., according to C.D.C. estimates.

He Helped Cure the ‘London Patient’ of H.I.V. Then He Turned to Covid.

Climate Change Will Accelerate Viral Spillovers, Study Finds

Is Covid More Dangerous Than Driving? How Scientists Are Parsing Covid Risks.

Is This What Endemic Disease Looks Like?

The W.H.O. strengthens its booster endorsement but still emphasizes getting primary shots to more people.

How Long Covid Exhausts the Body