The rise of the Delta variant of the coronavirus has raised new questions about how the vaccinated can stay safe and avoid breakthrough infections. We asked the experts for advice.The rise of the Delta variant of the coronavirus has raised new questions about how the vaccinated can stay safe and avoid breakthrough infections. We asked the experts for advice.Coronavirus Risks and Safety Concerns, Content Type: Service, Masks, Coronavirus Reopenings, Vaccination and Immunization, Disease Rates, Protective Clothing and Gear, Heating, Ventilation and Cooling (HVAC), Coronavirus (2019-nCoV), Airlines and Airplanes, Transit Systems, Restaurants, Grandparents, Supermarkets and Grocery Stores, Deaths (Fatalities), BusesRead More