Prevalence of Staphylococcus aureus in saliva of healthcare workers
Main Article Content
Objective: Analyze the prevalence of Staphylococcus aureus in saliva of workers at a university hospital.
Methodology: Epidemiologic longitudinal study carried out in Curitiba, Paraná, Brazil, with 486 workers between April 2006 and June 2008. Three saliva samples were collected and a data collection instrument was applied. Staphylococcus aureus were isolated from the clinical specimen and characterized by phenotypes. The data from the instrument and the laboratory results were organized and processed with EPI-Info software and analyzed via descriptive statistics.
Results: Among the healthcare workers studied, 60.9% were colonized by Staphylococcus aureus in saliva; of those, 67.9% were transitory carriers and 32.1% were persistent carriers; the prevalence of meticillin-resistant Staphylococcus aureus (MRSA) among the isolated cases was 15.7%. The average prevalence of MRSA was 12.7% and higher among nurses’ aides (21.4%) and cleaning aides (20.6%) and lower among nurses (4.5%) and doctors (5.9%).
Conclusions: Healthcare workers presented high prevalence of Staphylococcus aureus in saliva, indicating the mouth as an important body site to investigate colonization by MRSA and a potential source to its dissemination.
- Staphylococcus aureus
- Methicillin resistance
- Carrier state
- Occupational risks.
Goud IM. The clinical significance of methicillin-resistantStaphylococcus aureus. J Hosp Infect. 2005; 4: 277-82.2.Albrich WC, Harbarth S. Health-care worker: source, vector,or victim of MRSA. Lancet Infect Dis. 2008; 5: 289-301.3.Smith AJ, Jackson M, Bagg J. The ecology of Staphylococcusspecies in the oral cavity. J Med Microbiol. 2001; 11: 940-6.4.World Health Organization. Guidance on regulations for thetransport of infectious substances. Genève: WHO; 2005.5.Clinical and Laboratory Standards Institute. Performancestandards for antimicrobial susceptibility testing. FifteenthInformational Supplement. Wayne:CLSI; 2005.6.Nilsson P, Ripa T. Staphylocccus aureus throat colonizationis more frequent than colonization in the anterior nares. J C li nMicrobiol. 2006; 9: 3334-9.7.Small H, Casey AL, Elliott TS, Rollason J, Hilton AC, Ball S.The oral cavity: an overlooked site for MRSA screening andsubsequent decolonization therapy? J Infect. 2007; 4: 378-9.8.Smith AJ, Brewer A, Kirkpatrick P, Jackson MS, Young J,Watson S, e t a l. Staphylococcus aureus in the oral cavity fromthe patients in a regional burns unit. JHosp Infect. 2003; 3:184-9.9.Smith AJ, Robertson D, Tang MK, Jackson MS, MacKenzieD, Bagg J. Staphylococcus aureus in the oral cavity: a three-year retrospective analysis of clinical laboratory data. Br DentJ. 2003; 12: 701-3.10. Cretnik TZ, Petra V, Matjaz R, Borut J, Tatjana, Jana K, et a l.Prevalence and nosocomial spread of methicillin-resistantStaphylococcus aureus in a long-term-care facility in Slovenia.Infect Control Hosp Epidemiol. 2005; 2: 184-90.11. Busato CR, Gabardo J, Leão MTC. The evolution of theresistance of Staphylococcus found on healthcare workerscorrelated with local consumption of antibiotics. Braz J InfectDis. 2006; 3: 185-90.12. Moreira M, Freitas MR, Martins ST, Castelo A, MedeirosEAS.Efficacy of a program of prevention and control formethicillin-resistant Staphylococcus aureus infections in anintensive-care unit. Braz J Infect Dis. 2007; 1: 57-62.13. Murakami K, Minamide W, Wada K, Nakamura E, Teraoka H,Watanabe S. Identification of methicilin-resistant strains ofstaphylococci by polymerase chain reaction. J Clin Microbiol.1991; 10: 2240-4.14. VandenBergh MFQ,Yzerman EPF, Belkum A, Boelens HAM,Sijmons M, Verbrugh HA.Follow-up of Staphylococcusaureus nasal carriage after 8 years: redefining the persistentcarrier state. J Clin Microbiol. 1999; 10: 3133-40.15. Ben-David D, Mermel LA, Parenteal S. Methicillin-resistantStaphylococcus aureus transmission: the possible importanceof unrecognized health care worker carriage. Am J InfectControl. 2008; 2: 93-7.
Downloads
Accepted 2011-07-26
Published 2024-07-12

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
The copy rights of the articles published in Colombia Médica belong to the Universidad del Valle. The contents of the articles that appear in the Journal are exclusively the responsibility of the authors and do not necessarily reflect the opinions of the Editorial Committee of the Journal. It is allowed to reproduce the material published in Colombia Médica without prior authorization for non-commercial use