COVID-19

Moderna says a study in kids 6 to 11 found two doses of the company's COVID-19 vaccine given 28 days apart produced a strong antibody response.

The policy announced Monday threatens a "hard quarantine" that is longer than the Games themselves for anyone who arrives unvaccinated.

Only a third of pregnant Americans are vaccinated for COVID-19, despite being at far higher risk for complications and death.

A new coronavirus variant — known as delta plus — has cropped up in the U.K. There's concern it could be more dangerous than the highly contagious delta variant. What does the science actually show?

The companies studied a 10 microgram vaccine dose in children 5 to 11, a third of the dose used for adults, to minimize side effects and because it still prompts a strong immune response.

Memes could be a valuable way to help people deal with stressful situations.

The White House says the U.S. has enough doses for the country's 28 million kids age 5 to 11 and has laid out a plan to get them inoculated as soon as the vaccine is authorized for the age group.

San Francisco's only In-N-Out location still hasn't reopened for indoor dining. The restaurant violated public health requirements by allowing customers to enter without showing proof of vaccination.

After years of progress in reducing the number of annual deaths from tuberculosis, the number of cases of the infectious respiratory disease went up in 2020.

Are vaccinated people who get COVID as likely to spread the infection as unvaccinated people? Scientists don't think so.