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Bridgen, Jessica R. E., Lewis, Joseph 
ORCID: https://orcid.org/0000-0002-3837-5188, Todd, Stacy, Taegtmeyer, Miriam ORCID: https://orcid.org/0000-0002-5377-2536, Read, Jonathan M. and Jewell, Chris P.
(2024)
'A Bayesian approach to identifying the role of hospital structure and staff interactions in nosocomial transmission of SARS-CoV-2'. Journal of the Royal Society Interface, Vol 21, Issue 212.
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rsif.2023.0525.pdf - Published Version Available under License Creative Commons Attribution. Download (1MB) | Preview |
Abstract
Nosocomial infections threaten patient safety, and were widely reported during the COVID-19 pandemic. Effective hospital infection control requires a detailed understanding of the role of different transmission pathways, yet these are poorly quantified. Using patient and staff data from a large UK hospital, we demonstrate a method to infer unobserved epidemiological event times efficiently and disentangle the infectious pressure dynamics by ward. A stochastic individual-level, continuous-time state-transition model was constructed to model transmission of SARS-CoV-2, incorporating a dynamic staff–patient contact network as time-varying parameters. A Metropolis–Hastings Markov chain Monte Carlo (MCMC) algorithm was used to estimate transmission rate parameters associated with each possible source of infection, and the unobserved infection and recovery times. We found that the total infectious pressure exerted on an individual in a ward varied over time, as did the primary source of transmission. There was marked heterogeneity between wards; each ward experienced unique infectious pressure over time. Hospital infection control should consider the role of between-ward movement of staff as a key infectious source of nosocomial infection for SARS-CoV-2. With further development, this method could be implemented routinely for real-time monitoring of nosocomial transmission and to evaluate interventions.
| Item Type: | Article |
|---|---|
| Subjects: | WA Public Health > Health Administration and Organization > WA 540 National and state health administration WA Public Health > Health Administration and Organization > WA 546 Local Health Administration. Community Health Services WC Communicable Diseases > Virus Diseases > Viral Respiratory Tract Infections. Respirovirus Infections > WC 506 COVID-19 |
| Faculty: Department: | Clinical Sciences & International Health > Clinical Sciences Department |
| Digital Object Identifer (DOI): | https://doi.org/10.1098/rsif.2023.0525 |
| SWORD Depositor: | JISC Pubrouter |
| Depositing User: | JISC Pubrouter |
| Date Deposited: | 07 Mar 2024 12:20 |
| Last Modified: | 07 Mar 2024 12:20 |
| URI: | https://archive.lstmed.ac.uk/id/eprint/24151 |
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