Assessment of protection against reinfection with SARS-CoV-2 among 4 million PCR-tested individuals in Denmark in 2020: a population-level observational study
Christian Holm Hansen, Daniela Michlmayr, Sophie Gubbels, Kåre Mølbak, Steen Ethelberg
Topics & Concepts
Observational studySevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Coronavirus disease 2019 (COVID-19)2019-20 coronavirus outbreakMedicineVirologyPopulationBetacoronavirusEnvironmental healthDemographyInternal medicineOutbreakDiseaseInfectious disease (medical specialty)SociologySARS-CoV-2 and COVID-19 ResearchSARS-CoV-2 detection and testingCOVID-19 epidemiological studies