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Respiratory virus shedding in exhaled breath and efficacy

A study of 246 individuals with seasonal respiratory virus infections randomized to wear or not wear a surgical face mask showed that masks can significantly reduce

Conserving Supply of Personal Protective EquipmentA Call

The same logic would permit a washable cloth mask to cover a surgical mask, permitting the surgical mask to be used many days. The owner of each surgical mask could UV disinfect it by laying it in direct sunlight for a few hours on each side. Someone with a sewing machine could make 30 masks a day, so 500 community volunteers could produce

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