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2003, Cilt 17, Sayı 4, Sayfa(lar) 453-457
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THE MICROORGANISMS ISOLATED FROM BACTERIAL SKIN INFECTIONS AND THEIR SUSCEPTIBILITY TO ANTIBIOTICS
Ali Haydar PARLAK1, İdris ŞAHİN2, Ayşe KAVAK1, Şükrü ÖKSÜZ2, Elif ÖZTÜRK2, Demet KAYA2
1Abant İzzet Baysal Üniversitesi, Düzce Tıp Fakültesi, Dermatoloji Anabilim Dalı, Düzce
2Abant İzzet Baysal Üniversitesi, Düzce Tıp Fakültesi, Mikrobiyoloji ve Klinik Mikrobiyoloji Anabilim Dalı, Düzce
Keywords: Skin infection, bacteria, in vitro antibiotic susceptibility, disk diffusion method

The aim of the study was to investigate the prevalence of the bacteria causing skin infections and their antibiotic susceptibilities, to determine antibiotic regimens. Totally 163 cases, diagnosed as primary or secondary bacterial skin infection were included in the investigation. Culture positive 103 cases had the following diagnosis: secondary skin infection in 37, furuncles in 28, folliculitis in 11, impetigo in eight, carbuncle in six, perionyxis in six, ecthyma in four and abscess in three cases. Pathogens isolated from bacterial skin infections were as follows: 67 (65%) Staphylococcus aureus, 14 (13.6%) coagulase-negative staphylococcus, 10 (9.7%) Group A beta-hemolytic streptococci, eight (7.8%) Gram-negative bacilli and four (3.9%) -hemolytic streptococci. Penicillin and oxacillin resistance rates of S. aureus isolates were 86.6% and 25.4%, respectively. In antibiotic susceptibility tests with disk diffusion method, all of Gramnegative isolates were susceptible to piperacillin, amikacin and imipenem. Ten strains of group A beta-hemolytic streptococcus were isolated and all were susceptible to penicillin. Staphylococcus aureus was found as the most common bacterium responsible for the bacterial skin infections. Increased staphylococcal resistance to beta-lactam antibiotics used frequently for the treatment of bacterial skin infections was detected. According to the results of this study, tetracycline and erythromycin are not ideal alternatives in the ampiric treatment of pyoderma. Penicillin is still the first choice drug in the treatment of Group A beta-hemolytic streptococcal infections. Gram-negative bacilli should be considered as agents of infected skin ulcers.

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