The Food and Drug Administration has approved a fast-acting nasal spray to treat suicidal patients. The spray contains a chemical cousin of the anesthetic and party drug ketamine.

With the flu season looming, public health officials urge nearly all Americans over 6 months old to get immunized starting next month. Strategize now to avoid getting the flu while COVID-19 is raging.

Vaccine candidates are in advanced clinical trials, and WHO's director-general expresses hope they will be effective. But until then, he said, the world is reliant on "the basics" of disease control.

For many cancer patients, daily life can feel full of risky choices involving work, family, friends and money. Nearly every option pits the risks of catching the coronavirus against other downsides.

Public health officials say a promising coronavirus vaccine is on its way in 2021. But does that matter if only half of Americans say they're willing to get such a vaccination?

The hospital said it made a humane decision to end treatment. Michael Hickson's widow says doctors ended his care because they underestimated the life of a man with significant disabilities.

This is the sixth vaccine candidate to join Operation Warp Speed's portfolio, and the largest vaccine deal to date.

The National Institutes of Health is giving $248.7 million dollars to seven companies developing new technologies for testing, including use of the revolutionary gene-editing technique CRISPR.

Studies involving COVID-19 vaccine candidates in monkeys show promise of an effective vaccine, but it will take large-scale human trials to know for sure if they work.

Scientists are now checking to see if purified blood serum from people who have recovered from COVID-19 might be more than a useful treatment. Perhaps it's a way to prevent disease in someone else.

With the coronavirus spreading out of control in many parts of the U.S., some experts say the strategy of testing and tracing can't contain the pandemic until lockdowns bring case numbers down.

Face coverings are key to stopping spread of the coronavirus, but also slow communication, especially for people who don't hear well. Volunteers and companies suggest some transparent alternatives.

Two potential coronavirus vaccines started their final phase of testing Monday. Each trial will include up to 30,000 volunteers.

A COVID-19 vaccine candidate developed by the U.S. company Moderna and the National Institutes of Health starts its final phase of testing. It's one of a handful of candidates to reach this stage.

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