# Assessment of protection against reinfection with SARS-CoV-2 among 4 million PCR-tested individuals in Denmark in 2020: a population-level observational study

**Type:** Papers  
**Canonical URL:** https://scholariq.org/papers/assessment-of-protection-against-reinfection-with-sars-cov-2-among-4-million-pcr/

## Facts

| Field | Value |
| --- | --- |
| Author Names | Christian Holm Hansen,Daniela Michlmayr,Sophie Gubbels,Kåre Mølbak,Steen Ethelberg |
| Citations | 670 |
| DOI | 10.1016/s0140-6736(21)00575-4 |
| Fields | Mathematics,Medicine |
| Open Access | true |
| OA Status | bronze |
| OA URL | http://www.thelancet.com/article/S0140673621005754/pdf |
| OpenAlex ID | https://openalex.org/W3137307037 |
| PMID | 33743221 |
| Type | article |
| Year | 2021 |

## Paper authors

- [Kåre Mølbak](https://scholariq.org/researchers/kare-m-lbak/)

## Paper journal

- [The Lancet](https://scholariq.org/journals/the-lancet/)

## Paper primary topic

- [SARS-CoV-2 and COVID-19 Research](https://scholariq.org/topics/sars-cov-2-and-covid-19-research/)

## Paper topics

- [SARS-CoV-2 and COVID-19 Research](https://scholariq.org/topics/sars-cov-2-and-covid-19-research/)
- [SARS-CoV-2 detection and testing](https://scholariq.org/topics/sars-cov-2-detection-and-testing/)
- [COVID-19 epidemiological studies](https://scholariq.org/topics/covid-19-epidemiological-studies/)

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Source: ScholarIQ — public research metadata, principally OpenAlex. See https://scholariq.org/sources/ for provenance and https://scholariq.org/methodology/ for what these figures mean.