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Wojtyczka RD, Orlewska K, Kępa M, Idzik D, Dziedzic A, Mularz T, Krawczyk M, Miklasińska M, Wąsik TJ. Biofilm formation and antimicrobial susceptibility of Staphylococcus epidermidis strains from a hospital environment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2014; 11:4619-33. [PMID: 24776724 PMCID: PMC4053877 DOI: 10.3390/ijerph110504619] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 04/08/2014] [Accepted: 04/16/2014] [Indexed: 11/16/2022]
Abstract
The hospital environment microflora comprise a wide variety of microorganisms which are more or less pathogenic and where staphylococci are one of the most common types. The aim of the presented study was to evaluate the prevalence of the biofilm forming coagulase-negative staphylococci (CoNS) in a hospital environment as a risk factor for nosocomial infections. Among 122 isolated and tested strains of CoNS the most frequent were: S. epidermidis-32 strains, S. haemolyticus-31 strains, S. capitis subsp. capitis- 21 strains, S. hominis-11 strains, S. cohnii subsp. cohnii-nine strains. In case of CoNS, the main molecule responsible for intercellular adhesion is a polysaccharide intercellular adhesin (PIA), encoded on the ica gene operon. The analysis revealed the presence of the icaADBC operon genes in 46.88% of S. epidermidis isolates. IcaA and icaD were present in 34.38% and 28.13% of strains respectively while IcaC gene was present in 37.50% of strains. IcaB gene was found in 21.88% of S. epidermidis strains. In 15 (63%) strains all icaADBC operon genes were observed. The assessment of antibacterial drugs susceptibility demonstrated that analyzed CoNS strains were highly resistant to macrolides and lincosamides and more sensitive to rifampicin and linezolid. Our data indicates that the hospital environment can be colonized by biofilm forming coagulase-negative staphylococci and transmission of these strains can cause an increased risk of serious nosocomial infections.
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Affiliation(s)
- Robert D Wojtyczka
- Department and Institute of Microbiology and Virology, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, ul. Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Kamila Orlewska
- Department and Institute of Microbiology and Virology, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, ul. Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Małgorzata Kępa
- Department and Institute of Microbiology and Virology, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, ul. Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Danuta Idzik
- Department and Institute of Microbiology and Virology, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, ul. Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Arkadiusz Dziedzic
- Department of Conservative Dentistry with Endodontics, School of Medicine with the Division of Dentistry, Medical University of Silesia, Pl. Akademicki 17, 41-902 Bytom, Poland.
| | - Tomasz Mularz
- Department and Institute of Microbiology and Virology, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, ul. Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Michał Krawczyk
- Department and Institute of Microbiology and Virology, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, ul. Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Maria Miklasińska
- Department and Institute of Microbiology and Virology, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, ul. Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Tomasz J Wąsik
- Department and Institute of Microbiology and Virology, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, ul. Jagiellońska 4, 41-200 Sosnowiec, Poland.
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Boyce JM, Cookson B, Christiansen K, Hori S, Vuopio-Varkila J, Kocagöz S, Oztop AY, Vandenbroucke-Grauls CMJE, Harbarth S, Pittet D. Meticillin-resistant Staphylococcus aureus. THE LANCET. INFECTIOUS DISEASES 2005; 5:653-63. [PMID: 16183520 PMCID: PMC7128555 DOI: 10.1016/s1473-3099(05)70243-7] [Citation(s) in RCA: 122] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- John M Boyce
- Infectious Diseases Section, Hospital of Saint Raphael, New Haven, CT, USA
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