The U.S. Centers for Disease Control and Prevention (CDC) will update its guidance concerning masks in due time, CDC director Rochelle Walensky suggested during Wednesday’s press briefing. During the briefing, which featured members of the White House coronavirus response team, as well as public health officials, Walensky responded to a reporter asking why the CDC is not recommending Americans to wear masks that are more effective, such as N95s over a surgical mask or cloth masks, which studies show only filter out roughly ten percent of exhaled aerosols.