Comparison of Community and Healthcare-Associated MRSA in Iran

Mohsen Moghadami; Aziz Japoni; Abdollah Karimi; Masuod Mardani

Archives of Clinical Infectious Diseases

Infectious Diseases and Tropical Medicine Research Center, SBUMS

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Comparison of Community and Healthcare-Associated MRSA in Iran

Author(s):

Mohsen Moghadami¹,

Aziz Japoni^2,*,

Abdollah Karimi³,

Masuod Mardani⁴

1Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, IR Iran

2Professor Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran

3Pediatric Infectious Research Center, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran

4Infectious Diseases and Tropical Medicine Research Center, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran

Archives of Clinical Infectious Diseases:Vol. 5, issue 4; e94199

Published online:Oct 30, 2010

Article type:Research Article

Received:May 21, 2019

Accepted:Oct 30, 2010

How to Cite:Mohsen MoghadamiAziz JaponiAbdollah KarimiMasuod MardaniComparison of Community and Healthcare-Associated MRSA in Iran.Arch Clin Infect Dis.5(4):e94199.

Abstract

Background: To characterize and compare the epidemiological and microbiological aspects of community and healthcare-associated MRSA (CA-MRSA, and HA-MRSA) cases in Iran, this prospective cohort study was conducted from January to December 2008 in seven hospitals.

Patients and methods: Staphylococci were isolated from 109 hospitalized patients. MRSA isolates were classified into HA-MRSA and CA-MRSA based on clinical features. Antibacterial susceptibility patterns of the isolates to eight antibiotics routinely used to treat infected patients were determined according to standard agar dilution methods. Staphylococcal Cassette Chromosome mec (SCCmec) type of isolates and their correlation with antimicrobial susceptibility patterns in CA and HC isolates were determined.

Results: Of 109 isolates, 15(13.7%) were community-associated and 94 (86.3%) were healthcare-associated MRSA. The most frequent SCCmec types in the studied hospitals were SCC mec type I (56.9%) and type II (22%). Relatively high resistance (>60%) of the MRSA to the seven tested antibiotics including: ciprofloxacin, trimethoprimsulfamethoxazole, clindamycin, rifampin, erythromycin, tetracycline and doxycycline were noticed.

Conclusion: To our knowledge, this is the first time that the analysis of SCCmec type is carried out in Iran according to the clinical criteria. Difference in the prevalence of HC-MRSA and CA-MRSA based on the clinical and epidemiological features may indicate the need for revisiting the classification of MRSA. The high prevalence of multidrug resistant MRSA could be as a result of the excessive use of antibiotics in the hospitals. Therefore, periodical assessment of antibacterial susceptibility patterns of the MRSA strains is warranted.

Keywords

Community acquired MRSA

Healthcare-associated MRSA

Antibacterial susceptibility patterns

Staphylococcal cassette chromosome mec

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