molecular epidemiology of a nosocomial outbreak due to enterobacter cloacae and enterobacter agglomerans in campinas, são paulo, brazil epidemiologia molecular de um surto de bacteriemia por enterobacter cloacae e enterobacter agglomerans ocorrido na região de campinas, são paulo, brasil

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2000
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Abstract
A total of 73 isolates (57 Enterobacter cloacae and 16 Enterobacter agglomerans), recovered during an outbreak of bacteremia in the Campinas area, São Paulo, Brazil, were studied. Of these isolates, 61 were from parenteral nutrition solutions, 9 from blood cultures, 2 from a sealed bottle of parenteral nutrition solution, and one was of unknown origin. Of the 57 E. cloacae isolates, 54 were biotype 26, two were biotype 66 and one was non-typable. Of 39 E. cloacae isolates submitted to ribotyping, 87.2% showed the same banding pattern after cleavage with EcoRI and BamHI. No important differences were observed in the antimicrobial susceptibility patterns among E. cloacae isolates exhibiting the same biotype, serotype and ribotype. All E. agglomerans isolates, irrespective of their origin, showed same patterns when cleaved with EcoRI and BamHI. The results of this investigation suggest an intrinsic contamination of parenteral nutrition solutions and incriminate these products as a vehicle of infection in this outbreak.
Foram estudadas um total de 73 cepas (57 de E. cloacae e 16 E. agglomerans), isoladas durante um surto de bacteriemia ocorrido na região de Campinas, S. Paulo. Entre estas cepas, 61 foram isoladas de solução de nutrição parenteral, 9 de sangue, 2 de bolsa fechada de solução de nutrição parenteral e uma era de origem desconhecida. Entre as 57 cepas de E. cloacae, a maioria das cepas foram do biotipo 26/sorotipo O3 (39 cepas) e do biotipo 26/OR (13). Entre as 39 cepas de E. cloacae ribotipadas, 87,2% apresentaram o mesmo padrão de bandas com EcoRI e BamHI. Cepas de E. cloacae pertencentes ao mesmo biotipo, sorotipo e ribotipo não apresentaram diferenças significativas em relação ao padrão de sensibilidade aos agentes antimicrobianos. Todas as cepas de E. agglomerans, independente da origem, pertenciam ao mesmo ribotipo após a clivagem com EcoRI e BamHI. Os resultados obtidos sugerem uma contaminação intrínseca das soluções de nutrição parenteral, incriminando-as como o veículo de transmissão dos agentes etiológicos do surto.
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Authors ;Célia R. GONÇALVES;Tania M.I. VAZ;Daniela LEITE;Beatriz PISANI;Marise SIMÕES;Maria Angela M. PRANDI;Marilu M.M. ROCHA;Paulo C. CESAR;Plinio TRABASSO;Angela von NOWAKONSKI;Kinue IRINO
Journal 2017 12th international conference for internet technology and secured transactions, icitst 2017
Year 2000
DOI
10.1590/S0036-46652000000100001
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652000000100001
Keywords
nosocomial outbreak tropical medicine

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