The Centers for Disease Control and Prevention () will lift mask recommendations for 70 percent of American counties, the agency announced Friday afternoon.The agency has revised the calculations that determine whether an area is of 'high', 'medium' and 'low' transmission. Previously, only infection rate was considered, while now hospitalization rate and hospital capacity will be the most valued metrics.Under the currently installed metrics, only five percent of U.S. counties are not under a mask recommendation by federal regulators.
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