blaGES carrying Pseudomonas aeruginosa isolates from a public hospital in Rio de Janeiro, Brazil

AUTOR(ES)

Pellegrino, Flávia L. P. C., Netto-dos Santos, Kátia R., Riley, Lee W., Moreira, Beatriz M.

FONTE

Brazilian Journal of Infectious Diseases

DATA DE PUBLICAÇÃO

2006-08

RESUMO

Previous analysis of Pseudomonas aeruginosa class-1 integrons from Rio de Janeiro, Brazil, revealed the blaGES gene in one isolate. We screened isolates of two widespread PFGE genotypes, A and B, at a public hospital in Rio, for the presence of blaGES. The gene was detected in all seven P. aeruginosa isolates belonging to genotype B. Three of the seven genotype-B isolates were resistant to amikacin, aztreonam, ceftazidime, cefepime, ciprofloxacin, gentamicin, imipenem, meropenem, piperacillin-tazobactam and ticarcillin-clavulanic acid. The other four isolates were resistant to all these agents, except gentamicin, imipenem, meropenem and piperacillin-tazobactam. A synergistic effect between ceftazidime and imipenem or clavulanic acid suggested the production of GES-type ESBL.

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