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Pfizer and BioNTech received Health Canada authorization for XBB.1.5-adapted monovalent COVID-19 vaccine
On Sept. 28, 2023, Pfizer and BioNTech that Health Canada had authorized the companies’ Omicron XBB.1.5-adapted monovalent COVID-19 vaccine (COMIRNATYᆴ Omicron XBB.1.5) for ages 6 months and older.
For children 6 months through 4 years of age the updated vaccine was authorized for administration as a three-dose series in those without a history of completion of a COVID-19 primary vaccination course, or as a single dose for those with a history of completion of a COVID-19 primary vaccination course.
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Source: Pfizer
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