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Updated: Aug 20, 2026

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
Published on: May 8, 2013
Antibiotic resistance patterns of mecA-positive Staphylococcus aureus isolates from clinical specimens and nasal
Enas Al-Zu'bi1, Salwa Bdour, Asem A Shehabi
1Department of Biological Sciences, Faculty of Science, University of Jordan, Amman, Jordan.
Abstract:
The present study demonstrates that the nasal carriage rate of Staphylococcus aureus was 40% in Jordanian healthy young adult population, and 19% of nasal S. aureus and 57% of clinical isolates over the same period were resistant to oxacillin (MRSA), respectively. The mecA gene was detected in all MRSA isolates in both groups. Most of MRSA isolates were multiresistant to three antibiotic classes (beta-lactams, aminoglycosides, macrolides-lincosamides). This result suggests a serious problem may be encountered in treatment of staphylococcal infections in Jordan.
Insights
A study found 40% of healthy Jordanian adults carry Staphylococcus aureus. Methicillin-resistant Staphylococcus aureus (MRSA) was prevalent, with 19% of nasal strains and 57% of clinical isolates showing resistance, indicating a significant public health concern.
Area of Science:
- Microbiology
- Infectious Diseases
- Public Health
Background:
- Staphylococcus aureus is a common bacterium.
- Methicillin-resistant Staphylococcus aureus (MRSA) poses a significant treatment challenge.
- Understanding nasal carriage rates and resistance patterns is crucial for infection control.
Purpose of the Study:
- To determine the nasal carriage rate of Staphylococcus aureus in healthy young adults in Jordan.
- To investigate the prevalence of oxacillin-resistant Staphylococcus aureus (MRSA) in nasal and clinical isolates.
- To assess the antibiotic resistance patterns of MRSA isolates.
Main Methods:
- Nasal swabs were collected from healthy young adults.
- Clinical isolates were obtained over a specific period.
- Oxacillin resistance was tested, and the presence of the mecA gene was confirmed.
- Antibiotic susceptibility testing was performed on MRSA isolates.
Main Results:
- The nasal carriage rate of Staphylococcus aureus was 40%.
- 19% of nasal S. aureus isolates and 57% of clinical isolates were identified as MRSA.
- The mecA gene was present in all MRSA isolates.
- Most MRSA isolates exhibited multidrug resistance to beta-lactams, aminoglycosides, and macrolides-lincosamides.
Conclusions:
- High rates of Staphylococcus aureus nasal carriage and MRSA prevalence were observed in Jordan.
- The widespread multidrug resistance in MRSA isolates suggests potential difficulties in treating staphylococcal infections.
- Urgent public health strategies are needed to address the growing threat of antibiotic resistance in Jordan.
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