AI Article Synopsis
- Future colonization rates of ESBL-producing K. pneumoniae in humans are uncertain, highlighting the need for effective public health interventions.
- A mathematical model based on 13 years of data in Switzerland predicts that stable antimicrobial consumption and transmission could lead to steady prevalence rates in the near future.
- Reducing antimicrobial use and in-hospital transmission significantly impacts colonization rates, indicating that lowering overall antibiotic consumption is crucial in controlling the spread of these resistant bacteria.
Article Abstract
Background: Future prevalence of colonization with extended-spectrum betalactamase (ESBL-) producing K. pneumoniae in humans and the potential of public health interventions against the spread of these resistant bacteria remain uncertain.
Methods: Based on antimicrobial consumption and susceptibility data recorded during > 13 years in a Swiss region, we developed a mathematical model to assess the comparative effect of different interventions on the prevalence of colonization.
Results: Simulated prevalence stabilized in the near future when rates of antimicrobial consumption and in-hospital transmission were assumed to remain stable (2025 prevalence: 6.8% (95CI%:5.4-8.8%) in hospitals, 3.5% (2.5-5.0%) in the community versus 6.1% (5.0-7.5%) and 3.2% (2.3-4.2%) in 2019, respectively). When overall antimicrobial consumption was set to decrease by 50%, 2025 prevalence declined by 75% in hospitals and by 64% in the community. A 50% decline in in-hospital transmission rate led to a reduction in 2025 prevalence of 31% in hospitals and no reduction in the community. The best model fit estimated that 49% (6-100%) of observed colonizations could be attributable to sources other than human-to-human transmission within the geographical setting.
Conclusions: Projections suggests that overall antimicrobial consumption will be, by far, the most powerful driver of prevalence and that a large fraction of colonizations could be attributed to non-local transmissions.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9125893 | PMC |
| http://dx.doi.org/10.1186/s12879-022-07441-z | DOI Listing |
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