Shortages of shots for yellow fever, polio and other diseases have led to innovative solutions even in very poor countries.

A restriction more often used in natural disasters, or to quell unrest, has never been tested against a pathogen like the virus.

More Americans are writing end-of-life instructions as the pandemic renders such decisions less abstract. But are medical providers listening?

After the surprise discovery of an extra dose in every vial, Pfizer executives successfully lobbied the F.D.A. to change the vaccine’s formal authorization language. The company charges by the dose.

Laboratory studies of mutations circulating in South Africa suggest they may dodge some of the body’s immune responses.

But with 200 million doses pledged for the first quarter of the year, some experts say President Biden’s plan for 100 million shots in 100 days is far too modest.

A new study found that high school students aren’t getting enough produce.

The Communist Party’s success in reclaiming the narrative has proved to the world its ability to rally the people to its side, no matter how stumbling its actions might be.

Eating fried foods increased the risk of heart disease, stroke, heart failure and premature death.

The pandemic has been a powerful reminder that there is no clear barrier between viruses affecting animals and people.

Seeking to secure vital supplies, the authorities in the country maneuvered around anticorruption rules that require public disclosure of contracts.

Instead of lolling around in a lush pool of liquid, our baby was balled tight. Was there a connection to the eggs I had donated 10 years earlier?

A monoclonal antibody protected residents and staff members in facilities where the virus had appeared.

A combination of two injectable drugs will provide an alternative to daily pills for people with H.I.V.

Can President Biden really boost production? Why are governors trying to buy directly from Pfizer? And when will supply exceed demand?

The president-elect will nominate Eric S. Lander to head the Office of Science and Technology Policy, a post left vacant by President Trump for 18 months.

Researchers have banded together to find safe, virtual ways to teach the principles of microbiology and epidemiology.

Each additional daily cup of coffee was associated with a 1 percent decrease in the risk of prostate cancer.

High-intensity workouts get a lot of attention and can be great for health. But moderate physical activity may have metabolic advantages.

Pregnant women with blood pressure readings above 140/90 had deficits on tests of mental agility 15 years later.