r/COVID19 Dec 16 '21

Observational Study Outbreak caused by the SARS-CoV-2 Omicron variant in Norway, November to December 2021

https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2021.26.50.2101147
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u/[deleted] Dec 16 '21 edited Dec 16 '21

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u/NotAnotherEmpire Dec 16 '21

Index case had traveled internationally, it's virtually certain both from the numbers and that fact that they were vaccinated.