Nasopharyngeal carriage of Staphylococcus aureus among imprisoned males from Brazil without exposure to healthcare: risk factors and molecular characterization

Previous studies report high prevalence of Methicillin-resistant Staphylococcus aureus (MRSA) colonization among imprisoned populations. However, there are no data on that prevalence in Brazilian correctional institutions. We tested 302 male prisoners for nasopharyngeal colonization with Staphylococ...

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Published in:Annals of clinical microbiology and antimicrobials 2014-07, Vol.13 (1), p.25-25, Article 25
Main Authors: Witzel, Claudia de Lima, Fortaleza, Carlos Magno Castelo Branco, de Souza, Camila Sena Martins, Riboli, Danilo Flávio Moraes, da Cunha, Maria de Lourdes Ribeiro de Souza
Format: Article
Language:English
Subjects:
Bacteriology
Brazil - epidemiology
Carrier State - epidemiology
Carrier State - microbiology
Cluster Analysis
Cross-Sectional Studies
Diagnosis
Electrophoresis, Gel, Pulsed-Field
Genes
Genetic aspects
Health aspects
Humans
Male
Molecular Epidemiology
Molecular Typing
Nasopharynx - microbiology
Prevalence
Prisoners
Risk Factors
Short Report
Skin diseases
Staphylococcal Infections - epidemiology
Staphylococcal Infections - microbiology
Staphylococcus aureus
Staphylococcus aureus - classification
Staphylococcus aureus - genetics
Staphylococcus aureus - isolation & purification
Staphylococcus infections
Studies
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Summary:Previous studies report high prevalence of Methicillin-resistant Staphylococcus aureus (MRSA) colonization among imprisoned populations. However, there are no data on that prevalence in Brazilian correctional institutions. We tested 302 male prisoners for nasopharyngeal colonization with Staphylococcus aureus from February 2009 through April 2010. The overall isolation rate of S. aureus was 16.5% (50/302). Men who had sex with men, users of inhalatory drugs and those with previous lung or skin diseases were more likely to be colonized with S. aureus. MRSA was isolated from 0.7% of subjects (2/302). The two Community-associated (CA)-MRSA belonged to ST5 but were unrelated based on the PFGE results. Both harbored SCCmec IV, and did not possess the Panton-Valentine Leukocidin gene. We found low prevalence of S. aureus and CA-MRSA among prisoners. MRSA isolates ST5 from two subjects harboured SCCmec IV and presented different PFGE patterns.
ISSN:1476-0711
1476-0711
DOI:10.1186/1476-0711-13-25