T serotyping and genomic profile of erythromycin-resistant or -sensitive Streptococcus pyogenes isolated in Campania Region, Italy.
J Chemother
; 17(2): 131-7, 2005 Apr.
Article
en En
| MEDLINE
| ID: mdl-15920897
ABSTRACT
Streptococcus pyogenes causes mild infections, such as pharyngitis, and severe infections, such as necrotizing fascitis. In recent years, erythromycin-resistant strains of S. pyogenes have been reported in many countries. In some areas of Italy, increased rates of erythromycin resistance were first observed in the mid-1990s. Here, we report epidemiological T serotyping, invasiveness, erythromycin resistance, and PFGE patterns of 99 S. pyogenes strains isolated at the Laboratory of Clinical Microbiology of the Second University of Naples, Italy. Regarding T serotyping, 26 of 99 strains were W+, 16 strains were U+, 16 were X+, and 14 were agglutinated by anti T serum. A low percentage revealed Y+. Twelve strains were not T serotyped. PFGE patterns showed species polymorphism; however, inside the various serotypes, we demonstrated a fair homogeneity. No correlation among invasiveness and T serotype or PFGE pattern has been shown. Twenty-two of 99 strains were erythromycin-resistant.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Streptococcus pyogenes
/
Eritromicina
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
País/Región como asunto:
Europa
Idioma:
En
Revista:
J Chemother
Asunto de la revista:
ANTINEOPLASICOS
/
TERAPIA POR MEDICAMENTOS
Año:
2005
Tipo del documento:
Article
País de afiliación:
Italia