Biotyping, serotyping and ribotyping as epidemiological tools in the evaluation of Acinetobacter baumannii dissemination in hospital units, Sorocaba, São Paulo, Brazil

Authors

  • Célia R. GONÇALVES Instituto Adolfo Lutz
  • Tania Mara I. VAZ Instituto Adolfo Lutz
  • Eliane ARAUJO Instituto Adolfo Lutz
  • Regina de Fátima BONI Instituto Adolfo Lutz
  • Daniela LEITE Instituto Adolfo Lutz
  • Kinue IRINO Instituto Adolfo Lutz

Keywords:

Acinetobacter bauman, Biotyp, Serotyp, Ribotyp, Multiresista

Abstract

Dissemination of Acinetobacter baumannii strains in different units of a hospital in Sorocaba, São Paulo, Brazil was evaluated over a period of two years. By using biotyping, serotyping and ribotyping, 27 distinct clones were differentiated among 76 strains isolated between 1993-94, from clinical specimens of hospitalized patients. Two clones, 2:O4:A (biotype:serotype:ribotype) and 2:O29:A accounted for the majority of strains widely disseminated in the units during 1993. The introduction in the hospital setting, of a new clone, 6:O13:B, at the end of 1993 and its predominance through 1994 is discussed. Among 15 strains isolated from neonates, 6 (40%) belonged to the same clone, 2:O4:A. Interestingly, this clone was almost all recovered in neonatal intensive care unit, nursery and in pediatric unit. All strains were susceptible to imipenem and polymyxcin B. Multiresistant strains (up to 12 antimicrobial agents) accounted for 66.7% and 84.8% of the strains isolated in 1993 and in 1994, respectively.

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Published

2000-10-01

Issue

Section

Nosocomial infections

How to Cite

GONÇALVES, C. R., VAZ, T. M. I., ARAUJO, E., BONI, R. de F., LEITE, D., & IRINO, K. (2000). Biotyping, serotyping and ribotyping as epidemiological tools in the evaluation of Acinetobacter baumannii dissemination in hospital units, Sorocaba, São Paulo, Brazil . Revista Do Instituto De Medicina Tropical De São Paulo, 42(5), 277-282. https://revistas.usp.br/rimtsp/article/view/30455