Abstract

Objective: Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infections have been increasingly reported in recent years, and they commonly cause skin and skin-related structure infections. The aim of this study was to investigate CA-MRSA frequency and nasal carriage in patients with pyoderma.



Methods
: Between November 2011 and August 2013, we aimed to investigate the frequency of MRSA isolated from nasal swab and wound specimens of 38 patients with pyoderma according to the “community-acquired infection” criteria of Centers for Disease Control and Prevention. Also, the criteria investigated included age, gender, number of people residing in the same household and their hospitalization frequency, chronic illnesses, and antibiotic use in the previous six months. The control group of 103 patients who were evaluated with the same criteria and with various skin diseases excluding pyoderma were examined by culturing their nasal swabs.



Results
: Totally, 38 specimens obtained from patients with folliculitis (n=18), furuncle (n=7), cellulitis (n=4), abscess (n=2), hidradenitis suppurativa (n=2), carbuncle (n=1), and impetigo (n=4) were investigated, and 2 (5.3%) CA-MRSA were isolated. One of these strains were isolated from a patient with folliculitis, and the other strain was isolated from nasal swab of the another patient of whose sample from folliculitis was negative for CA-MRSA. One (1%) CA-MRSA strain was isolated from the nasal swabs of the control group. mecA gene was positive, but mecC and Panton-Valentine leukocidin gene were not detected in three isolated CA-MRSA. No statistically significant difference (Fischer’s exact test p=0.177) in the CA-MRSA frequency was found between the two groups. The number of household residents (≥5) was a common risk factor for infection in patients from whom CA-MRSA was isolated.



Conclusions
: Our results show that the frequency of CA-MRSA in patients with pyoderma  is low. Furthermore, we think that analysis of patients with case definition might facilitate the evaluation of the results in CA-MRSA related studies.



Cite this article as
: Akgün-Karapınar B, Yılmaz M, Ömeroğlu M, Erbudak E, Akdağ-Köse A, Aydın D. [Determination of frequency and nasal carriage of community-acquired methicillin-resistant Staphylococcus aureus in patients with pyoderma]. Klimik Derg. 2018; 31(2): 115-9. Turkish.

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