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View Full Version : Why COVID vaccination progress at home risks being undone by spread of variants abroad


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06-02-2021, 08:27 AM
https://i.cbc.ca/1.6048100.1622554071!/cpImage/httpImage/image.jpg_gen/derivatives/16x9_460/virus-outbreak-india.jpg Allowing the coronavirus to spread in other countries jeopardizes gains made in Canada through COVID-19 vaccinations, some scientists suggest. That's because*the more opportunities the virus*has to spread, the more likely it is to mutate and foil vaccines.


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