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Quebec's public health director is encouraging the population to take certain steps to prevent the spread of viral infections when...
symptomatic
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Share on PinterestMany people who first had COVID-19 in 2020 are still experiencing lingering health issues. Jeff J Mitchell/Getty ImagesA...
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In long-awaited data, Pfizer said its three-dose vaccine was 80% effective against symptomatic omicron COVID-19 infection among children 6 months...