Physics shows why 20 seconds is right for hand-washing

Twenty seconds. That’s how long you need to wash your hands to remove germs, a new physics study confirms. Typical hand-washing guidelines—including those from the U.S. Centers for Disease Control and Prevention—advise scrubbing your hands for a minimum of 20 seconds. To assess that recommendation, researchers used a mathematical model to examine the key mechanics of hand-washing and […]

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Making the case for plant-based vaccines

A pair of researchers at Université Laval, Quebec claim that more effort should be made to develop plant-based vaccines. Hugues Fausther-Bovendo and Gary Kobinger have published a Perspective piece in the journal Science espousing the benefits of plant-based vaccines and suggesting how they might be made. As the world continues to grapple with the SARS-CoV-2 virus, researchers […]

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