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|Title:||Phenotypic and genotypic characterization of VanA Enterococcus isolated during the first nosocomial outbreak in Brazil|
|Authors:||Zanella, R. C.|
Moreira, M. D.
Salomão, Reinaldo [UNIFESP]
Inst Adolfo Lutz Registro
St Marcelina Hosp
Universidade Federal de São Paulo (UNIFESP)
|Publisher:||Mary Ann Liebert Inc Publ|
|Citation:||Microbial Drug Resistance-mechanisms Epidemiology and Disease. Larchmont: Mary Ann Liebert Inc Publ, v. 9, n. 3, p. 283-291, 2003.|
|Abstract:||We report the phenotypic and genotypic characterization of 50 VanA Enterococcus clinical isolates from infected patients and 97 isolates from colonized patients obtained during a nosocomial outbreak in a single hospital in São Paulo, Brazil during 1998. the identification of strains to the species level by conventional biochemical and phenotypic tests and by multiplex PCR assay had 100% agreement. Both E. faecalis and E. faecium were isolated from patients during this outbreak. the vanA genotype was confirmed by PCR. Antibiotic susceptibility testing showed that E. faecium isolates are generally less susceptible to antibiotics than E. faecalis. By PCR, 24 of 26 VRE strains tested carried the Tn1546 element. Pulsed-field gel electrophoresis identified five distinct patterns for E. faecalis (A, B, C, D, E) and three for E. faecium (M, N, and O). A single PFGE pattern was identified in the majority of strains of each species and does not discriminate between case and carrier isolates.|
|Appears in Collections:||Em verificação - Geral|
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