"Among those who reported always wearing a mask in public indoor settings, the odds of testing positive for the virus were 56 percent lower than among those who said they never did. Among those who specified the type of mask they wore, the odds of testing positive for the virus were 83 percent lower for those wearing an N95 or KN95 respirator, and 66 percent lower for those wearing surgical masks, compared with those who did not wear masks."
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