Richard Harris

With cases growing quickly abroad, the federal government announced several measures to prevent the new coronavirus from taking hold in the U.S.

As the death toll from the new coronavirus mounts, scientists are working to understand the nature of the disease. Questions remain about how readily it spreads and how dangerous it is.

A Seattle-area man who recently traveled to China returned infected with the coronavirus responsible for at least 300 illnesses and at least six deaths. It's the first U.S. case of the new virus.

Hopes were high that a cocktail of vitamins and steroids could treat a deadly disease that kills some 270,000 Americans annually. Trial results were disappointing.

Sepsis, or blood poisoning, arises when the body overreacts to an infection. An analysis finds that it may be involved in 20% of deaths worldwide, twice the proportion previously estimated.

The U.S. cancer death rate dropped more than 2% between 2016 and 2017, the biggest single-year drop ever, according to the American Cancer Society. Better treatment for lung cancer is a factor.

A New York woman worried that her sore throat might be strep, so she went to the doctor to have it checked out. Then came the bill — with a price tag similar to a small SUV.

Federal health officials say emergency rooms saw a spike in vaping-related lung injuries in June. That timing provides an important clue about the cause of this deadly outbreak.

The spate of more than 2,500 acute vaping-related lung injuries tracked by the Centers for Disease Control and Prevention is on the decline, epidemiologists say, and the number of deaths has slowed.

The 77-year-old former vice president released an upbeat medical report Tuesday.

More than 6 million middle school and high school students used tobacco products this year, according to a new federal report. Most are now using these addictive products by vaping.

More than 6 million middle school and high school students used tobacco and nicotine products this year, according to a new federal report. Most are now using these addictive products by vaping.

They've identified hundreds of proteins in human blood that wax and wane in surprising ways as we age. The findings could provide important clues about which substances in the blood can slow aging.

Scientists have come to realize that flu vaccines are less effective for people who are overweight or obese. Now researchers are trying to figure out why and hope to develop better vaccines.

The White House is apparently backpedaling on its plan to ban most flavors in vaping products. The proposed FDA rule is unpopular with vape shop owners, and that's creating political blowback.

In September, the Trump administration said it would ban all flavored e-cigarette products in an effort to reduce the youth vaping epidemic. Since then, there's been no movement toward implementation.

Infectious disease specialists debate whether it's better to give the strongest antibiotics all at once for drug-resistant germs or save the most innovative medicines for use as a last resort.

Rapid genome decoding and analysis have made it possible to quickly diagnose some baffling rare diseases that make babies sick. Even when there's no cure, the information can help families cope.

Given the scope and the mysterious nature of vaping-related illness, the Centers for Disease Control and Prevention set up a specialized command center to coordinate its response.

The Centers for Disease Control and Prevention is starting to study lung tissue and chemicals from electronic cigarette vapor to track down the root cause of lung damage caused by vaping.