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Molecular characterization and antimicrobial resistance of nasal Staphylococcus aureus in the community of Kabul
- Source :
- Journal of Global Antimicrobial Resistance, Vol 34, Iss , Pp 18-22 (2023)
- Publication Year :
- 2023
- Publisher :
- Elsevier, 2023.
-
Abstract
- ABSTRACT: Objectives: This study aimed to investigate the prevalence and molecular characteristics of community methicillin-resistant Staphylococcus aureus (MRSA) nasal carriage among students at Kabul University. Methods: Nasal swabs were collected from anterior nares of 150 healthy non-medical students at Kabul University. Antimicrobial susceptibility testing was performed on all S. aureus isolates, and all detected MRSA isolates were then confirmed by mecA/mecC polymerase chain reaction and characterized using DNA microarray. Results: A total of 50 S. aureus strains were isolated from the anterior nares of the 150 participants. The prevalence of S. aureus and MRSA nasal carriage among Kabul students was 33.3% and 12.7%, respectively. Seven (36.8%) MRSA isolates and 8 (25.8%) methicillin-susceptible S. aureus (MSSA) isolates were multidrug-resistant (i.e. resistant to at least three different antimicrobials tested). All MRSA isolates (n = 19) were susceptible to linezolid, rifampicin, and fusidic acid. Seven MRSA clones, belonging to four clonal complexes (CCs), were identified. The most commonly identified clone was CC22-MRSA-IV TSST-1-positive, which accounted for 63.2% (12/19) of MRSA isolates. SCCmec typing showed that most MRSA strains harboured SCCmec type IV (94.7%). Thirteen (68.4%) MRSA isolates carried the TSST-1 and 5 (26.3%) PVL genes. Conclusion: Our findings revealed the relatively high prevalence of MRSA nasal carriers in the community in Kabul, with the predominance of the CC22-MRSA-IV TSST-1-positive clone and frequent multidrug resistance among these isolates.
Details
- Language :
- English
- ISSN :
- 22137165
- Volume :
- 34
- Issue :
- 18-22
- Database :
- Directory of Open Access Journals
- Journal :
- Journal of Global Antimicrobial Resistance
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.13dcf412dca24d1d8df21fc472f42eec
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.jgar.2023.06.001