Dec. 8, 2021 | Pfizer-BioNTech says lab tests show that three-doses of its COVID-19 vaccine appears to fight off the omicron variant, but some remain skeptical …
Home Nightly News CBC News CBC News: The National | Pfizer vs. omicron, Addressing surgery backlogs, Nobel...
CBC News: The National | Pfizer vs. omicron, Addressing surgery backlogs, Nobel winner Maria Ressa
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