Incidence of SARS-CoV-2 infection among healthcare workers before and after COVID-19 vaccination in a tertiary paediatric hospital in Warsaw: A retrospective cohort study

• Beata Kasztelewicz ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

  * E-mail: b.kasztelewicz@ipczd.pl

  Affiliation Department of Clinical Microbiology and Immunology, The Children’s Memorial Health Institute, Warsaw, Poland

  https://orcid.org/0000-0003-1504-5589

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• Katarzyna Skrok,

  Roles Investigation, Visualization, Writing – original draft, Writing – review & editing

  Affiliation Department of Clinical Microbiology and Immunology, The Children’s Memorial Health Institute, Warsaw, Poland

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• Julia Burzyńska,

  Roles Investigation, Methodology, Writing – original draft, Writing – review & editing

  Affiliation Department of Clinical Microbiology and Immunology, The Children’s Memorial Health Institute, Warsaw, Poland

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• Marek Migdał,

  Roles Conceptualization, Data curation, Resources, Supervision, Writing – review & editing

  Affiliation CEO of the Children’s Memorial Health Institute, Warsaw, Poland

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• Katarzyna Dzierżanowska-Fangrat

  Roles Conceptualization, Data curation, Supervision, Writing – review & editing

  Affiliation Department of Clinical Microbiology and Immunology, The Children’s Memorial Health Institute, Warsaw, Poland

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