Characterization of the Brazilian endemic clone of methicillin-resistant Staphylococcus aureus (MRSA) from hospitals throughout Brazil



Document title: Characterization of the Brazilian endemic clone of methicillin-resistant Staphylococcus aureus (MRSA) from hospitals throughout Brazil
Journal: The brazilian journal of infectious diseases
Database: PERIÓDICA
System number: 000290649
ISSN: 1413-8670
Authors: 1


Institutions: 1Universidade de Sao Paulo, Faculdade de Ciencias Farmaceuticas, Sao Paulo. Brasil
Year:
Season: Ago
Volumen: 5
Number: 4
Pages: 163-170
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental
English abstract 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 to be resistant to ciprofloxacin, erythromycin, lincomycin, trimethoprim-sulphamethoxazole, and tetracycline. Variable susceptibility to these drugs was found only in isolates belonging to clones other than the BEC. The results show that, among MRSA, the BEC is common in Brazil. The best method for mapping changes in the frequency of this clone among MRSA is pulsed field gel electrophoresis. Use of molecular mapping is an important tool for monitoring the spread of potentially dangerous microbes
Disciplines: Biología,
Química
Keyword: Bacterias,
Genética,
Bioquímica,
Staphylococcus aureus,
Cepas,
ADN genómico,
Epidemiología,
Clon endémico de Brasil
Keyword: Biology,
Chemistry,
Bacteria,
Genetics,
Biochemistry,
Staphylococcus aureus,
Strains,
Genomic DNA,
Epidemiology,
Brazilian endemic clone
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