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The novel coronavirus is the world's most pressing health concern. But other threats remain — and are heightened by this current crisis.

The novel coronavirus is the world's most pressing health concern. But other threats remain — and are heightened by this current crisis.

Unpaid electric bills ballooned during the pandemic to more than $27 billion, and many now face the risk of having their power shut off.

Two new human studies back earlier hints that vaccines designed to prevent respiratory infections might also provide some protection against Alzheimer's disease.

Many Americans are still making sense of new CDC guidance that vaccinated people no longer have to wear masks in most indoor settings.

A 200-pound loggerhead turtle at the Living Coast Discovery Center in Chula Vista was having problems with her buoyancy. One of the center's animal care specialists had the answer. A custom wetsuit.

The deaths caused by the pandemic appear to be shortening overall life expectancy in the U.S. by 1.13 years, which would be the largest single decline in at least 40 years.

When the 2014 Ebola outbreak was spiraling out of control, Gayle Smith worked on the team that devised the Obama administration's response.

When scientists revved up the production of an enzyme called GPLD1 in older mice, it stimulated nerve growth in their brains and the animals navigated a maze better.

U.S. health officials have lifted an 11-day pause on Johnson & Johnson vaccinations following a recommendation by an expert panel.