Basic rules of hygiene protect health care and lab workers from nasal colonization by Staphylococcus aureus: an international cross-sectional study.

Acquisition of nasal Staphylococcus aureus (S. aureus) colonization by contaminated hands is likely an important determinant of its nasal carriage rate in health care and lab setting. The objective of our cross-sectional study was to assess the prevalence of nasal methicillin-sensitive (MSSA) or -re...

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Autores principales: Mitra Saadatian-Elahi, Anne Tristan, Frédéric Laurent, Jean-Philippe Rasigade, Coralie Bouchiat, Anne-Gaëlle Ranc, Gérard Lina, Olivier Dauwalder, Jérôme Etienne, Michèle Bes, François Vandenesch
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Publicado: Public Library of Science (PLoS) 2013
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spelling oai:doaj.org-article:a2323738aa9542f2899b2c7857a56ca62021-11-18T08:41:20ZBasic rules of hygiene protect health care and lab workers from nasal colonization by Staphylococcus aureus: an international cross-sectional study.1932-620310.1371/journal.pone.0082851https://doaj.org/article/a2323738aa9542f2899b2c7857a56ca62013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24367562/?tool=EBIhttps://doaj.org/toc/1932-6203Acquisition of nasal Staphylococcus aureus (S. aureus) colonization by contaminated hands is likely an important determinant of its nasal carriage rate in health care and lab setting. The objective of our cross-sectional study was to assess the prevalence of nasal methicillin-sensitive (MSSA) or -resistant Staphylococcus aureus (MRSA) carriage among health care professionals (HCPs) attending an international symposium and to study the association between compliance with hygiene rules, individual-related parameters, and medical conditions with nasal S. aureus carriage in this population. After obtaining consent, two nasal swabs were collected. Nasal MSSA and MRSA carriage was measured by the: i) molecular approach targeting spa, mecA and mecA-orfX junction sequences, and ii) culture on selective S. aureus media combined with mecA molecular detection of isolated strains. Information on compliance with hygiene rules, demographic variables, sector of activity and long-term medication was collected by anonymous questionnaire. The participation rate was 32.3%. In total, 176 subjects from 34 countries were included in the analysis. S. aureus was isolated from the nasal swabs of 57 (32.4%) subjects, of whom 3 (5.3%) harbored MRSA strains. Overall, 123 subjects reported working in microbiology laboratories with direct manipulation of S. aureus, and 29 acknowledged regular contacts with patients. In this exposed population, hydro-alcoholic solutions appeared to have a significant protective effect against nasal S. aureus carriage (OR = 0.36; 95% CI: 0.15-0.85). Hospital work was associated with increased risk of nasal S. aureus carriage (OR = 2.38; 95% CI: 1.07-5.29). The results of this study showed that compliance with basic rules of hygiene, such as the use of hydro-alcoholic solutions, could reduce the risk of nasal S. aureus colonization. Hydro-alcoholic solution could interrupt auto-transmission of the pathogen, consequently decreasing the overall nasal carriage rate, specifically in transient carriers.Mitra Saadatian-ElahiAnne TristanFrédéric LaurentJean-Philippe RasigadeCoralie BouchiatAnne-Gaëlle RancGérard LinaOlivier DauwalderJérôme EtienneMichèle BesFrançois VandeneschPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 12, p e82851 (2013)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Mitra Saadatian-Elahi
Anne Tristan
Frédéric Laurent
Jean-Philippe Rasigade
Coralie Bouchiat
Anne-Gaëlle Ranc
Gérard Lina
Olivier Dauwalder
Jérôme Etienne
Michèle Bes
François Vandenesch
Basic rules of hygiene protect health care and lab workers from nasal colonization by Staphylococcus aureus: an international cross-sectional study.
description Acquisition of nasal Staphylococcus aureus (S. aureus) colonization by contaminated hands is likely an important determinant of its nasal carriage rate in health care and lab setting. The objective of our cross-sectional study was to assess the prevalence of nasal methicillin-sensitive (MSSA) or -resistant Staphylococcus aureus (MRSA) carriage among health care professionals (HCPs) attending an international symposium and to study the association between compliance with hygiene rules, individual-related parameters, and medical conditions with nasal S. aureus carriage in this population. After obtaining consent, two nasal swabs were collected. Nasal MSSA and MRSA carriage was measured by the: i) molecular approach targeting spa, mecA and mecA-orfX junction sequences, and ii) culture on selective S. aureus media combined with mecA molecular detection of isolated strains. Information on compliance with hygiene rules, demographic variables, sector of activity and long-term medication was collected by anonymous questionnaire. The participation rate was 32.3%. In total, 176 subjects from 34 countries were included in the analysis. S. aureus was isolated from the nasal swabs of 57 (32.4%) subjects, of whom 3 (5.3%) harbored MRSA strains. Overall, 123 subjects reported working in microbiology laboratories with direct manipulation of S. aureus, and 29 acknowledged regular contacts with patients. In this exposed population, hydro-alcoholic solutions appeared to have a significant protective effect against nasal S. aureus carriage (OR = 0.36; 95% CI: 0.15-0.85). Hospital work was associated with increased risk of nasal S. aureus carriage (OR = 2.38; 95% CI: 1.07-5.29). The results of this study showed that compliance with basic rules of hygiene, such as the use of hydro-alcoholic solutions, could reduce the risk of nasal S. aureus colonization. Hydro-alcoholic solution could interrupt auto-transmission of the pathogen, consequently decreasing the overall nasal carriage rate, specifically in transient carriers.
format article
author Mitra Saadatian-Elahi
Anne Tristan
Frédéric Laurent
Jean-Philippe Rasigade
Coralie Bouchiat
Anne-Gaëlle Ranc
Gérard Lina
Olivier Dauwalder
Jérôme Etienne
Michèle Bes
François Vandenesch
author_facet Mitra Saadatian-Elahi
Anne Tristan
Frédéric Laurent
Jean-Philippe Rasigade
Coralie Bouchiat
Anne-Gaëlle Ranc
Gérard Lina
Olivier Dauwalder
Jérôme Etienne
Michèle Bes
François Vandenesch
author_sort Mitra Saadatian-Elahi
title Basic rules of hygiene protect health care and lab workers from nasal colonization by Staphylococcus aureus: an international cross-sectional study.
title_short Basic rules of hygiene protect health care and lab workers from nasal colonization by Staphylococcus aureus: an international cross-sectional study.
title_full Basic rules of hygiene protect health care and lab workers from nasal colonization by Staphylococcus aureus: an international cross-sectional study.
title_fullStr Basic rules of hygiene protect health care and lab workers from nasal colonization by Staphylococcus aureus: an international cross-sectional study.
title_full_unstemmed Basic rules of hygiene protect health care and lab workers from nasal colonization by Staphylococcus aureus: an international cross-sectional study.
title_sort basic rules of hygiene protect health care and lab workers from nasal colonization by staphylococcus aureus: an international cross-sectional study.
publisher Public Library of Science (PLoS)
publishDate 2013
url https://doaj.org/article/a2323738aa9542f2899b2c7857a56ca6
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