Why Bay Area experts are praising CDC guideline halting COVID quarantines for vaccinated people FacebookTwitterEmail From left, student nurse Anjali Sundararaman prepares to inoculate 73-year-old San Francisco native Adam Banks, as Martin Auzenne, 3rd from left, prepares to go to a rest area after receiving his COVID-19 vaccine from student nurse Karina Castillo during a vaccination clinic at the Southeast Health Center in San Francisco, California on Monday, Feb. 8, 2021. Both Sundararaman and Castillo are nursing students at San Francisco State University.Stephen Lam / The Chronicle The CDC's new guideline that fully vaccinated people do not have to quarantine after direct exposure to the coronavirus was met with praise Thursday by Bay Area health experts.