Without rapid testing, some experts fear new U.S. guidelines may mean infected people leave isolation while still contagious. The C.D.C. director said masking was a better option.Without rapid testing, some experts fear new U.S. guidelines may mean infected people leave isolation while still contagious. The C.D.C. director said masking was a better option.your-feed-science, Coronavirus Omicron Variant, Coronavirus Delta Variant, Disease Rates, Coronavirus (2019-nCoV), Quarantines, Tests (Medical), Vaccination and Immunization, Centers for Disease Control and Prevention, United StatesRead More
