:: Volume 18, Issue 9 (12-2013) ::
__Armaghane Danesh__ 2013, 18(9): 757-767 Back to browse issues page
Antibiotic resistant pattern of methicillin resistant and sensitive Staphylococcus aureus isolated from patients durining 2009-2010, Ahvaz, Iran.
N Parhizgari, SM Moosavian1, A Sharifi
1- , moosavian_m@yahoo.com
Abstract:   (6090 Views)
Abstract Background & aim: Staphylococcus aureus is one of the most important nosocomial infecting agents resistant to commonly used antibiotics. Nowadays, methicillin-resistant S. aureus (MRSA) is considered one of the main causes of nosocomial infections. The aim of this study was to identify the antibiotic resistance pattern of methicicllin- resistant and susceptible strains in Ahwaz, Iran. Methods: In the present cross - sectional study, a number of 255 clinically suspected cases of Staphylococcus aureus were collected during a 19 month period. The bacteria were investigated using standard biochemical tests such as catalase, mannitol fermentation, coagulase and Dnase. Sensitive strains were confirmed by disk diffusion method compared to commonly used antibiotics. The collected data were analyzed using descriptive statistical tests. Results: of 255 suspected cases, 180 were confirmed as S.aureus, a total of 59 strains of S. aureus (2/37 percent) were resistant to methicillin. Resistance to S. aureus strains resistant to methicillin included: chloramphenicol (3.38%), rifampin (45.76%), norfloxacin (89.83%), gentamicin (89.83%), ciprofloxacin, (91.52%), azithromycin, (88.13%), cotrimoxazole (86.44%) and all isolates strains were sensitive to vancomycin and nitrofurantoin. A total of 10 different patterns of antibiotic resistance in methicillin-resistant Staphylococcus aureus strains were identified. Conclusion: Expression of new resistance factor in nosocomial infection is one of the major challenges in treating these infections. This study showed a high prevalence of resistance against some class of antibiotics in MRSA isolated from Imam Khomeini and Golestan hospital of Ahwaz, Iran. Key words: Nosocomial infection, Methicillin Resistant Staphylococcus aureus (MRSA), Antibiotic Resistant Pattern
Keywords: Key words: Nosocomial infection, Methicillin Resistant Staphylococcus aureus (MRSA), Antibiotic Resistant Pattern
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Type of Study: Research | Subject: Special
Received: 2015/05/6 | Accepted: 2015/05/6 | Published: 2015/05/6

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Volume 18, Issue 9 (12-2013) Back to browse issues page