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Using methods developed with help from the U.S., South Africa has deployed an army of 28,000 contact tracers to track the spread of the coronavirus, and has flattened the curve of infections.

Antoine Deneriaz of France is the surprise winner of the gold medal in men's downhill skiing, one of the signature events of the Winter Olympics. And American figure skater Michelle Kwan withdraws from competition, citing a groin injury.

Last week, high school freshman Jackie Kantor and her younger sister Melissa had an idea: they wanted to give displaced children new backpacks. More than 2,000 backpacks have been collected for kids who lost all their other possessions in Hurricane Katrina.

Officials across the U.S. are pledging to divest public pensions from Russian funds to protest the invasion of Ukraine. But disentangling the money from Russia is easier said than done.

Matilda Brindle, an evolutionary biologist at the University of Oxford, explains.

COVID-19 vaccines are not authorized for use in most young people, but Pfizer and Moderna are pursuing studies that could result in younger kids getting vaccinated by the summer.

After a year of being shut down due to the pandemic, Coney Island's amusement parks have reopened — at a third of their normal capacity. But business owners are glad to see the parks come alive again.

A study of a thousand women is underway to determine when during pregnancy is the best time to get a COVID-19 vaccine, and whether infants will be protected by the vaccine once they are born.

Attempts to remove books from school libraries have increased, spurred by activism from conservative parent groups and resistance to teaching socially progressive ideas in schools.