Harvard scientists give their read on recent COVID data from the U.S. and South Africa.

Halving deaths and other Biden goals are in reach, experts say, but let’s forget about "moonshot" and focus on resources and prevention.

Subvariant is rising in the region, but no sign of dramatic surge in cases that other nations have experienced.

New target for old antibiotic rooted in decades-long effort to unlock secrets of lethal childhood disease.

We put the question to a Harvard scientist who studies neural and behavioral variation in domestic canine breeds.

Risk assessment experts offer tips for balancing pandemic risks, as government restrictions ease.

As Omicron fades, specialists seek answers for patients who can’t shake symptoms.

In search for alternatives to opioids, Medical School researchers have hit on an unlikely candidate.

As Omicron rapidly recedes, some countries are seeing a new version of the variant, dubbed BA.2

Harvard researchers study "super-aging" minds for clues to possible interventions for the rest of us.