In the race to convince people to get the COVID-19 vaccine, the United States faces an uphill battle compared to the UK, where more people want the shot.

There's no correlation between states' school reopening status and the ability of teachers to get COVID-19 vaccinations, a new analysis finds.

The Johnson & Johnson vaccine joins ones from Pfizer and Moderna in the fight against COVID-19. Here's what ypu need to know about it.

The Johnson&Johnson vaccine joins ones from Pfizer and Moderna in the fight against COVID-19. Here's what ypu need to know about it.

COVID-19 vaccines appear less effective against three new SARS-CoV-2 variants, researchers report. What does that mean for fighting the pandemic?

COVID-19 vaccines appear less effective against three new SARS-CoV-2 variants, researchers report. What does that mean for fighting the pandemic?

In a new study with mice, a vaccine administered directly to the bladder cleared the bacteria that cause urinary tract infection. Can it work for people?

The costs of leaving low-income countries without COVID-19 vaccines could run in the trillions of dollars and allow the pandemic to go on for years.

Giving vaccine priority to older adults and others most at risk of dying will actually save the maximum number of lives and the most years of life.

In several countries, including the US, the number of people who say they'll get a COVID-19 vaccine is falling short of the number needed for herd immunity.