Rise of Variants in Europe Shows How Dangerous the Virus Can BeMuch of the continent is experiencing a wave of outbreaks driven by the B.1.1.7 variant, which ravaged Britain this winter.Rise of Variants in Europe Shows How Dangerous the Virus Can Be
Nearly 20 percent of the U.S. population is fully vaccinated. Many countries may not hit that target this year.The widening gap is fueling frustration and potentially extending the pandemic.Nearly 20 percent of the U.S. population is fully vaccinated. Many countries may not hit that target this year.