Scientists widely agree that the U.S. simply doesn’t have enough of a handle on the variants to roll back public health measures and is at risk of fumbling yet another phase of the pandemic.

By Marion Renault, Associated Press

When a new viral variant emerges, experts want to know how well it spreads, whether it changes the disease, and whether it affects immunity.

By Andrew Joseph, STAT

The Korea Disease Control and Prevention Agency said on Monday the cases have been confirmed in a family of three people who came to South Korea on December 22.

By Associated Press

A growing number of countries are halting air travel from the U.K., while France has banned trucks from the country for a period of 48 hours while the new variant is assessed.

By Pan Pylas, Associated Press