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COVID-19 risk and mortality in hospitals: this is not a time to let our guard down
  1. Jemima T Collins1,
  2. Ben Carter2,
  3. Jonathan Hewitt3
  1. 1 Geriatric Medicine, University Hospital of Wales Cardiff, Cardiff, UK
  2. 2 Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
  3. 3 Division of Population Medicine, School of Medicine, Cardiff University, Cardiff, UK
  1. Correspondence to Dr Jemima T Collins, Geriatric Medicine, University Hospital of Wales Cardiff, Cardiff CF10 3AT, UK; jemimacollins{at}

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The burden of nosocomial COVID-19 in Wales: results from a multicentre retrospective observational study of 2508 hospitalised adults.

Nosocomial infections are not a new entity. Prior to COVID-19, the prevalence of healthcare-associated infection in the developed world was 4%–7.1%.1

The pandemic brought hospital admissions to the forefront of public awareness. Who should be admitted to hospital, and who should stay at home? Emergency admissions significantly dropped, for fear of being exposed to the virus. This risk was real, as the earliest reports showed that the rate of COVID-19 acquired in hospital in all inpatients with the disease was as high as 12%.2

In this issue, Ponsford and colleagues3 report outcomes of 2508 patients with COVID-19 in multiple Welsh hospitals during the first wave, based on likelihood of source of exposure. Although the majority of all cases acquired infection in …

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  • Contributors JC drafted the article, which all other authors edited. JC was responsible for submission.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Commissioned; externally peer reviewed.

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