COVID-19 infections — a move backed by sound science about risk factors that go beyond wearing or not wearing masks.In the words of one study, it comes down to the danger of “heavy breathing in close proximity.”Crowded indoor spaces filled with people yelling, leaning close to hear one another and touching the same sticky surfaces are “the opposite of social distancing,” said Dr.
David Hamer of the Boston University School of Medicine.“Can you do social distancing at a bar? Can you wear a mask while drinking?” Hamer said. “Bars are the perfect place to break all those rules.”The rapid spread of a bar outbreak can swamp public health workers.