They should still wear masks but no quarantines are necessary, the agency said in new guidance that cited growing data about the effectiveness of the shots.They should still wear masks but no quarantines are necessary, the agency said in new guidance that cited growing data about the effectiveness of the shots.your-feed-science, Coronavirus Risks and Safety Concerns, Disease Rates, Coronavirus (2019-nCoV), Travel and Vacations, Quarantines, Airlines and Airplanes, Content Type: Service, Cruises, United States Politics and Government, Centers for Disease Control and Prevention, United StatesRead More