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Analysis of some virulence factors of Vibrio vulnificus isolated from Rio de Janeiro, Brazil

Published online by Cambridge University Press:  15 May 2009

D. P. Rodrigues ,
R. V. Ribeiro  and
E. Hofer
D. P. Rodrigues
Affiliation:
Dalia dos Prazeres Rodrigues, Fundação Oswaldo Cruz, Av. Brasil 4365, Pavilhão Rocha Lima, Dpto Bacteriologia Manguinhos, Rio de Janeiro, Brazil, CEP 21045
R. V. Ribeiro
Affiliation:
Dalia dos Prazeres Rodrigues, Fundação Oswaldo Cruz, Av. Brasil 4365, Pavilhão Rocha Lima, Dpto Bacteriologia Manguinhos, Rio de Janeiro, Brazil, CEP 21045
E. Hofer
Affiliation:
Dalia dos Prazeres Rodrigues, Fundação Oswaldo Cruz, Av. Brasil 4365, Pavilhão Rocha Lima, Dpto Bacteriologia Manguinhos, Rio de Janeiro, Brazil, CEP 21045
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Twenty strains of V. vulnificus isolated from the environment were investigated for characteristics related to their infectivity such as colonial morphology, enzymatic activity and animal assays. The presence of DNase, chitinase, amylase, lecithinase and gelatinase was observed in 100% of the strains, haemolytic activity was absent, and variable results were obtained in elastase, collagenase and chondroitinase. In the animal assays, 70% of the strains were lethal to adult mice, while 45% caused fluid accumulation in suckling mice. Although all strains had opaque colonies, only 3 of the 20 had the three enzymes elastase, collagenase and gelatinase, and only one of these was virulent in animal assays.

Type
Research Article
Information
Epidemiology & Infection , Volume 108 , Issue 3 , June 1992 , pp. 463 - 467
Copyright
Copyright © Cambridge University Press 1992

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