Prevalence of methicillin-resistant Staphylococcus aureus colonization among healthcare workers at a tertiary care hospital in northeastern Brazil
Summary: Background: Staphylococcus aureus is a human pathogen of clinical importance related to a variety of infections. Aim: The objective of this study was to analyze the molecular and epidemiological characteristics of S. aureus obtained from healthcare professionals (HCP) of a hospital in sout...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-12-01
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| Series: | Infection Prevention in Practice |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590088920300482 |
| _version_ | 1818952824559501312 |
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| author | Lucas S.C. da Silva Yasmin M.F.S. Andrade Arianne C. Oliveira Beatriz C. Cunha Eliana G. Oliveira Tamara S. Cunha Suzelle S. Mafra Jéssica B. Almeida Suzi P. Carvalho Flávia S. Nascimento Manoel Neres Santos Junior Raiane C. Chamon Kátia R.N. Santos Guilherme B. Campos Lucas M. Marques |
| author_facet | Lucas S.C. da Silva Yasmin M.F.S. Andrade Arianne C. Oliveira Beatriz C. Cunha Eliana G. Oliveira Tamara S. Cunha Suzelle S. Mafra Jéssica B. Almeida Suzi P. Carvalho Flávia S. Nascimento Manoel Neres Santos Junior Raiane C. Chamon Kátia R.N. Santos Guilherme B. Campos Lucas M. Marques |
| author_sort | Lucas S.C. da Silva |
| collection | DOAJ |
| description | Summary: Background: Staphylococcus aureus is a human pathogen of clinical importance related to a variety of infections. Aim: The objective of this study was to analyze the molecular and epidemiological characteristics of S. aureus obtained from healthcare professionals (HCP) of a hospital in southwestern Bahia, Brazil. Methods: Samples were collected from hands, nasal cavity, and laboratory coats of 80 HCP. The bacterial isolates recovered from 240 samples were identified as S. aureus, and then analyzed for their antimicrobial resistance profile, genotypic characterization, and pathogenicity. Findings: 178 isolates were identified as S. aureus, being mostly isolated from the nasal cavity. Thirty isolates (16.8%) were characterized as MRSA. The virulence gene frequency varied according to isolate source. All virulence genes were identified in at least one hand isolate. Isolates from laboratory coats did not show seb and pvl. Isolates from the nasal cavity did not exhibit pvl. The SCCmec type I was identified in 56.7% of MRSA isolates. Among MRSA isolates, 14 PFGE pulsotypes were characterized, with profile A being predominant (nine isolates). Clonal complexes CC5, CC45, and CC398 were found. MRSA isolates induced cytokine gene expression in macrophages, with IL-10 and IL-17 being expressed more often. Conclusion: We found a high colonization rate for S. aureus among HCP. Moreover, we observed that MRSA strains presented different virulence factors and could induce cytokine gene expression, indicating an urgent need to control colonization rates of HCP by MRSA isolates in order to protect hospital patients and the general public. |
| first_indexed | 2024-12-20T09:56:31Z |
| format | Article |
| id | doaj.art-2d8b6ec0934840d7a23b0ab5d6ecd748 |
| institution | Directory Open Access Journal |
| issn | 2590-0889 |
| language | English |
| last_indexed | 2024-12-20T09:56:31Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Infection Prevention in Practice |
| spelling | doaj.art-2d8b6ec0934840d7a23b0ab5d6ecd7482022-12-21T19:44:26ZengElsevierInfection Prevention in Practice2590-08892020-12-0124100084Prevalence of methicillin-resistant Staphylococcus aureus colonization among healthcare workers at a tertiary care hospital in northeastern BrazilLucas S.C. da Silva0Yasmin M.F.S. Andrade1Arianne C. Oliveira2Beatriz C. Cunha3Eliana G. Oliveira4Tamara S. Cunha5Suzelle S. Mafra6Jéssica B. Almeida7Suzi P. Carvalho8Flávia S. Nascimento9Manoel Neres Santos Junior10Raiane C. Chamon11Kátia R.N. Santos12Guilherme B. Campos13Lucas M. Marques14State University of Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Ilhéus, Brazil; Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilState University of Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Ilhéus, Brazil; Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilMultidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilMultidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilMultidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilMultidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilMultidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilState University of Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Ilhéus, Brazil; Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilState University of Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Ilhéus, BrazilMultidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilState University of Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Ilhéus, Brazil; Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilInstitute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; Pathology Department, Medicine Faculty, Fluminense Federal University (UFF), Niterói, BrazilInstitute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, BrazilMultidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, BrazilState University of Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Ilhéus, Brazil; Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil; Corresponding author. Multidisciplinary Institute of Health: Rua Rio de Contas, 58 - Quadra 17 - Lote 58, Bairro Candeias, Vitória da Conquista, CEP: 45.029-094, BA, Brazil. Tel.: +55 77 3429 2710; fax: +55 77 3429 2710.Summary: Background: Staphylococcus aureus is a human pathogen of clinical importance related to a variety of infections. Aim: The objective of this study was to analyze the molecular and epidemiological characteristics of S. aureus obtained from healthcare professionals (HCP) of a hospital in southwestern Bahia, Brazil. Methods: Samples were collected from hands, nasal cavity, and laboratory coats of 80 HCP. The bacterial isolates recovered from 240 samples were identified as S. aureus, and then analyzed for their antimicrobial resistance profile, genotypic characterization, and pathogenicity. Findings: 178 isolates were identified as S. aureus, being mostly isolated from the nasal cavity. Thirty isolates (16.8%) were characterized as MRSA. The virulence gene frequency varied according to isolate source. All virulence genes were identified in at least one hand isolate. Isolates from laboratory coats did not show seb and pvl. Isolates from the nasal cavity did not exhibit pvl. The SCCmec type I was identified in 56.7% of MRSA isolates. Among MRSA isolates, 14 PFGE pulsotypes were characterized, with profile A being predominant (nine isolates). Clonal complexes CC5, CC45, and CC398 were found. MRSA isolates induced cytokine gene expression in macrophages, with IL-10 and IL-17 being expressed more often. Conclusion: We found a high colonization rate for S. aureus among HCP. Moreover, we observed that MRSA strains presented different virulence factors and could induce cytokine gene expression, indicating an urgent need to control colonization rates of HCP by MRSA isolates in order to protect hospital patients and the general public.http://www.sciencedirect.com/science/article/pii/S2590088920300482Molecular epidemiologyResistanceS. aureusMRSAGenes of virulenceGene expression |
| spellingShingle | Lucas S.C. da Silva Yasmin M.F.S. Andrade Arianne C. Oliveira Beatriz C. Cunha Eliana G. Oliveira Tamara S. Cunha Suzelle S. Mafra Jéssica B. Almeida Suzi P. Carvalho Flávia S. Nascimento Manoel Neres Santos Junior Raiane C. Chamon Kátia R.N. Santos Guilherme B. Campos Lucas M. Marques Prevalence of methicillin-resistant Staphylococcus aureus colonization among healthcare workers at a tertiary care hospital in northeastern Brazil Infection Prevention in Practice Molecular epidemiology Resistance S. aureus MRSA Genes of virulence Gene expression |
| title | Prevalence of methicillin-resistant Staphylococcus aureus colonization among healthcare workers at a tertiary care hospital in northeastern Brazil |
| title_full | Prevalence of methicillin-resistant Staphylococcus aureus colonization among healthcare workers at a tertiary care hospital in northeastern Brazil |
| title_fullStr | Prevalence of methicillin-resistant Staphylococcus aureus colonization among healthcare workers at a tertiary care hospital in northeastern Brazil |
| title_full_unstemmed | Prevalence of methicillin-resistant Staphylococcus aureus colonization among healthcare workers at a tertiary care hospital in northeastern Brazil |
| title_short | Prevalence of methicillin-resistant Staphylococcus aureus colonization among healthcare workers at a tertiary care hospital in northeastern Brazil |
| title_sort | prevalence of methicillin resistant staphylococcus aureus colonization among healthcare workers at a tertiary care hospital in northeastern brazil |
| topic | Molecular epidemiology Resistance S. aureus MRSA Genes of virulence Gene expression |
| url | http://www.sciencedirect.com/science/article/pii/S2590088920300482 |
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