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Nursing home study shows 4th COVID mRNA dose provides extra protection against severe Omicron outcomes
N95, medical or cloth face masks: Which is best against the Omicron COVID-19 variant? Canada's latest guidance explained - The Globe and Mail
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Maintaining face mask use before and after achieving different COVID-19 vaccination coverage levels: a modelling study - The Lancet Public Health
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Do you need an N95 mask to protect yourself from Omicron? (And what you need to know if you have one) | CBC News
N95s offer best Omicron protection but cloth and surgical masks still have their place: doctors | CBC News
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Coronavirus: High-efficiency masks up to six times better at filtering aerosols than cloth, surgical masks: Canadian study | CTV News
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Des experts conseillent d'utiliser de meilleurs masques contre le variant Omicron | COVID-19 : tout sur la pandémie | Radio-Canada.ca
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What masks work best against Omicron? Experts are divided, but most say ditch cloth masks - National | Globalnews.ca
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