Prevalence of phenotypic resistance of Staphylococcus aureus isolates to macrolide, lincosamide, streptogramin B, ketolid and linezolid antibiotics in Turkey
Braz. j. infect. dis
;
14(1): 11-14, Jan.-Feb. 2010. tab
Artigo
em Inglês
| LILACS
| ID: lil-545000
ABSTRACT
The incidence of drug-resistant pathogens differs greatly between countries according to differences in the usage of antibiotics. The purpose of this study was to investigate the phenotypic resistance of 321 methicillin resistance Staphylococcus aureus (MRSA) and 195 methicillin susceptible S. aureus (MSSA) in a total of 516 S. aureus strains to macrolide, lincosamide, streptogramin B (MLS B), ketolid, and linezolid. Disk diffusion method was applied to determine MLS B phenotype and susceptibility to different antibiotic agents. It was found that 54.6 percent of the isolates were resistant to erythromycin (ERSA), 48 percent to clindamycin, 55 percent to azithromycin, 58.7 percent to spiramycin, 34.7 percent to telithromycin, and 0.4 percent to quinupristin-dalfopristin, respectively. No strain resistant to linezolid was found. The prevalence of constitutive (cMLS B), inducible (IMLS B), and macrolides and type B streptogramins (M/MS B) among ERSA isolates (237 MRSA, 45 MSSA) was 69.6 percent, 18.2 percent, and 12.2 percent in MRSA and 28.9 percent, 40 percent, and 31.1 percent in MSSA, respectively. In conclusions, the prevalence of cMLS B was predominant in MRSA; while in MSSA strains, iMLS B and M/MS B phenotype were more higher than cMLS B phenotype resistance. The resistance to quinupristindalfopristin was very low, and linezolid was considered as the most effective antibiotic against all S.aureus strains.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Staphylococcus aureus
/
Resistência a Meticilina
/
Macrolídeos
/
Testes de Sensibilidade a Antimicrobianos por Disco-Difusão
/
Antibacterianos
Tipo de estudo:
Estudo de prevalência
/
Fatores de risco
Limite:
Humanos
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Braz. j. infect. dis
Assunto da revista:
Doenças Transmissíveis
Ano de publicação:
2010
Tipo de documento:
Artigo
País de afiliação:
Turquia
Instituição/País de afiliação:
Haydarpasa Numune Education and Research Hospital/TR
/
Istanbul University/TR
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