Evaluation of virulence factors in environmental isolates of Vibrio species
Mem. Inst. Oswaldo Cruz
;
88(4): 589-92, Oct.-Dec. 1993. tab
Article
Dans Anglais
| LILACS
| ID: lil-148846
RESUMO
Strains of Vibrio parahaemolyticus, Vibrio fluvialis and Vibrio mimicus isolated from seafood and seawater were examined for characteristics related to infectivity, such as enzymatic activity and animal assays. All strains hydrolysed DNA, starch, gelatin and chitin. Variable results were obtained with the haemolysin, chondroitin, collagen, elastin and lecithin tests. Production of thermostable direct haemolysin by V. parahaemolyticus was detected in 7.1 per cent strains derived from seafood and 2 per cent from seawater. In the animal assays, strains of V. fluvialis showed positive results at skin PF (75 per cent ), mouse lethality (100 per cent ), but no fluid accumulation in the suckling mice model was noted. Concerning V. mimicus, results showed skin PF (100 per cent ), mouse lethality (100 per cent ) and fluid accumulation in suckling mice (66.6 per cent )
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Vibrio
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
1993
Type:
Article
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