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WELCOME BACK TO CDC IS NOW ENDORSING DOUBLE MASKING TO HELP PREVENT THE SPREAD OF CORONAVIRUS THE NATIONAL PUBLIC HEALTH ORGANIZATION RELEASED THIS NEW GUIDANCE AND REPORTED WEDNESDAY. THE REPORT IS BASED UPON A LAB EXPERIMENT WHICH FOUND WEARING A CLOTH MASK OVER SURGICAL MASK CAN BLOCK THE SPREAD OF INFECTIOUS PARTICLES BY AS MUCH AS 95% ..
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