Public-health experts have warned for months that the COVID-19 virus isn’t gone—and, far from waning, SARS-CoV-2 has mutated yet again into a new variant. Called NB.1.8.1, it's causing a spike in infections in China. A few cases also recently appeared in the U.S. when people arriving at airports tested positive, according to a statement from the U.S. Centers for Disease Control and Prevention (CDC). The World Health Organization has also designated it as a “variant under monitoring.”

Tag-uri: Coronavirus