Neck gaiters are worse than not wearing a mask, study finds

The U.S. hit another grim milestone on Monday with more than 5 million Americans now infected with the coronavirus. Although there is a push to increase testing and develop a vaccine, experts continue to suggest that if all Americans wore masks, the pandemic could be brought under control “within weeks.” In the spirit of that mission, a new study published in Science Advances is shedding light on which masks are most effective — and which may actually be hurting the effort to curb COVID-19.