A new CDC report describes the first linked U.S. clusters of people infected with the B.1.351 variant of the virus that causes COVID-19 with no known link to travel. This variant was identified through routine
genetic surveillance, and contact tracing was used to try to prevent additional spread. Expanding the scope and volume of genetic surveillance program; conducting contact investigations, and employing prevention strategies—including vaccination, masks, and physical distancing—are important to identifying and controlling the spread of variants of concern. http://bit.ly/7017a5.
