Estudio molecular de 6 episodios de infección intrahospitalaria causados por staphylococcus aureus meticilino-resistente / Molecular study of 6 episodes of intrahospitalary infection due to methicillin resistant staphylococcus aureus
Rev. méd. Chile
;
122(5): 487-95, mayo 1994. tab, ilus
Article
Dans Espagnol
| LILACS
| ID: lil-135454
ABSTRACT
A critical step in any epidemiologic research concerning nosocomial infections is the precise identification of the responsible pathogen. The present work utilized a molecular approach-plasmids identification, restriction lengght polymorphism DNA analysis and random amplified polymorphic DNA for the characterization of 6 nosocomial outbreaks due to 52 strains of methicillin-resistant staphylococcus aureus (MRSA). In these episodes, the clinic-epidemiologic and phenotipic analysis (antibiotype) pointed to a nosocomial infection. Through molecular analysis it was possible to establish in a very precise way, clonality due to MRSA strains in 2 of the studied outbreaks; the same type of analysis allowed to eliminate a MRSA clonal origin in the remainder 4 episodes. The antibiogram was not an useful analytic tool due to its poor discriminatory power. Also, through a PCR procedure, it was possible to identify the presence of the gen mecA in every of the 52 MRSA strains studied
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Indice:
LILAS (Amériques)
Sujet Principal:
Infections à staphylocoques
/
Staphylococcus aureus
/
Techniques in vitro
/
Infection croisée
/
Biologie moléculaire
langue:
Espagnol
Texte intégral:
Rev. méd. Chile
Thème du journal:
Médicament
Année:
1994
Type:
Article
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