Covid Shorts: Why wearing masks properly can save your life

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We are constantly being told to wear a mask when we go out or are among a crowd. We are issued a fine if caught without a mask in public places.But wearing a mask is not enough. It must fit properly on the face or we risk infection, says a new study by the University of Cincinnati (UC).Poorly fitted face masks can even double the infection risk to the wearers and people around them, researchers in UC’s College of Engineering and Applied Science say in the study published in the Nature journal Scientific Reports.The researchers used computerised tomography or CT scans of three different-sized face masks attached to three different-sized dummy heads to measure the gaps between the face and the fabric. Then they calculated the leaks from these gaps to determine the infection risk. They found that while N95 masks were effective barriers against Covid-19 and other airborne diseases…