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Hygiene may attenuate selection for antibiotic resistance by changing microbial community structure

Aspenberg, Magnus LU ; Maad Sasane, Sara LU ; Nilsson, Fredrik ; Brown, Sam P. and Wollein Waldetoft, Kristofer (2023) In Evolution, Medicine and Public Health 11(1).
Abstract

Good hygiene, in both health care and the community, is central to containing the rise of antibiotic resistance, as well as to infection control more generally. But despite the well-known importance, the ecological mechanisms by which hygiene (or other transmission control measures) affect the evolution of resistance remain to be elucidated. Using metacommunity ecology theory, we here propose that hygiene attenuates the effect of antibiotic selection pressure. Specifically, we predict that hygiene limits the scope for antibiotics to induce competitive release of resistant bacteria within treated hosts, and that this is due to an effect of hygiene on the distribution of resistant and sensitive strains in the host population. We show this... (More)

Good hygiene, in both health care and the community, is central to containing the rise of antibiotic resistance, as well as to infection control more generally. But despite the well-known importance, the ecological mechanisms by which hygiene (or other transmission control measures) affect the evolution of resistance remain to be elucidated. Using metacommunity ecology theory, we here propose that hygiene attenuates the effect of antibiotic selection pressure. Specifically, we predict that hygiene limits the scope for antibiotics to induce competitive release of resistant bacteria within treated hosts, and that this is due to an effect of hygiene on the distribution of resistant and sensitive strains in the host population. We show this in a mathematical model of bacterial metacommunity dynamics, and test the results against data on antibiotic resistance, antibiotic treatment, and the use of alcohol-based hand rub in long-term care facilities. The data are consistent with hand rub use attenuating the resistance promoting effect of antibiotic treatment. Our results underscore the importance of hygiene, and point to a concrete way to weaken the link between antibiotic use and increasing resistance.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
antibiotic resistance, competitive release, ecology, hygiene, metacommunity ecology
in
Evolution, Medicine and Public Health
volume
11
issue
1
publisher
Oxford University Press
external identifiers
  • pmid:36687161
  • scopus:85160415521
ISSN
2050-6201
DOI
10.1093/emph/eoac038
language
English
LU publication?
yes
id
0d2a418c-6bda-4261-bd47-ebd0e1c4c0a6
date added to LUP
2023-08-30 15:03:35
date last changed
2024-04-20 02:15:26
@article{0d2a418c-6bda-4261-bd47-ebd0e1c4c0a6,
  abstract     = {{<p>Good hygiene, in both health care and the community, is central to containing the rise of antibiotic resistance, as well as to infection control more generally. But despite the well-known importance, the ecological mechanisms by which hygiene (or other transmission control measures) affect the evolution of resistance remain to be elucidated. Using metacommunity ecology theory, we here propose that hygiene attenuates the effect of antibiotic selection pressure. Specifically, we predict that hygiene limits the scope for antibiotics to induce competitive release of resistant bacteria within treated hosts, and that this is due to an effect of hygiene on the distribution of resistant and sensitive strains in the host population. We show this in a mathematical model of bacterial metacommunity dynamics, and test the results against data on antibiotic resistance, antibiotic treatment, and the use of alcohol-based hand rub in long-term care facilities. The data are consistent with hand rub use attenuating the resistance promoting effect of antibiotic treatment. Our results underscore the importance of hygiene, and point to a concrete way to weaken the link between antibiotic use and increasing resistance.</p>}},
  author       = {{Aspenberg, Magnus and Maad Sasane, Sara and Nilsson, Fredrik and Brown, Sam P. and Wollein Waldetoft, Kristofer}},
  issn         = {{2050-6201}},
  keywords     = {{antibiotic resistance; competitive release; ecology; hygiene; metacommunity ecology}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{Oxford University Press}},
  series       = {{Evolution, Medicine and Public Health}},
  title        = {{Hygiene may attenuate selection for antibiotic resistance by changing microbial community structure}},
  url          = {{http://dx.doi.org/10.1093/emph/eoac038}},
  doi          = {{10.1093/emph/eoac038}},
  volume       = {{11}},
  year         = {{2023}},
}