Consulta: creatorFacets:"Mamizuka,Elsa M."
Registros recuperados: 2
Data/hora: 11/06/2024 11:00:28

Characterization of the Brazilian endemic clone of methicillin-resistant Staphylococcus aureus (MRSA) from hospitals throughout Brazil
Provedor de dados: Brazilian Journal of Infectious Diseases
Autores: Oliveira,Geraldo A.; Faria,Juarez B.; Levyand,Carlos E.; Mamizuka,Elsa M.
The objective of this study was to characterize patterns of the Brazilian endemic clone of methicillin-resistant Staphylococcus aureus (MRSA) from hospitals throughout Brazil. We studied 83 MRSA strains isolated from patients hospitalized in 27 public and private hospitals in 19 cities located in 14 Brazilian states from September, 1995, to June, 1997. The MRSA strains were typed using antibiograms, bacteriophage typing and pulsed field gel electrophoresis (PFGE). The analysis of genomic DNA by PFGE showed that 65 isolates presented the same PFGE pattern. This pattern was present in all of the hospitals studied indicating the presence of an endemic MRSA clone widely disseminated throughout Brazilian hospitals (BEC). All isolates belonging to the BEC proved...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylococus aureus; MRSA; Epidemiology; Brazilian endemic clone.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702001000400001

Comparative analysis of agr groups and virulence genes among subclinical and clinical mastitis Staphylococcus aureus isolates from sheep flocks of the Northeast of Brazil
Provedor de dados: Brazilian Journal of Microbiology
Autores: Almeida,Lara M. de; Almeida,Mayra Zilta P.R.B. de; Mendonça,Carla L. de; Mamizuka,Elsa M.
Staphylococcus aureus is one of the most frequent mastitis causative agents in small ruminants. The expression of most virulence genes of S. aureus is controlled by an accessory gene regulator (agr)locus. This study aimed to ascertain the prevalence of the different agr groups and to evaluate the occurrence of encoding genes for cytotoxin, adhesins and toxins with superantigen activity in S. aureus isolates from milk of ewes with clinical and subclinical mastitis in sheep flocks raised for meat production The agr groups I and II were identified in both cases of clinical and subclinical mastitis. Neither the arg groups III and IV nor negative agr were found. The presence of cflA gene was identified in 100% of the isolates. The frequency of hla and lukE-D...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylococcus aureus; Agr groups; Virulence genes; Mastitis; Sheep flock.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200026