Factors associated with the formation of SARS-CoV-2 case-clusters in Danish schools: a nationwide register-based observational study.

Epidemiol Infect · 2023 · PMC10600729 · PMID 37466091

Europe PMC DOI

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The sentences

marginally significantno p-value reported

The protective effect of a previous infection in case introductions on starting a cluster was in this study marginally significant, but not significant in the sensitivity analyses.

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