Fator necrosante citotóxico em Escherichia coli isolada de mastite clínica bovina

This report describes the production of cytotoxic necrotizing factor (CNF) by an Escherichia coli strain isolated from clinical bovine mastitis with clinical signs of toxemia The animal had hemorrhages and necrosis of the mammary glands, and died within 24 hours after the onset of clinical signs. In...

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Bibliographic Details
Published in:Arquivo brasileiro de medicina veterinária e zootecnia 2002, Vol.54 (6), p.648-650
Main Authors: Ribeiro, M.G.(UNESP FMVZ Departamento de Higiene Veterinária e Saúde Publica), Costa, E.O.(USP FMVZ NAPGAMA), Leite, D.S.(UNICAMP Instituto de Biologia Departamento de Microbiologia e Imunologia), Ferreira, A.J.P.(USP FMVZ Departamento de Patologia), Silva, A.S.(UNICAMP Instituto de Biologia Departamento de Microbiologia e Imunologia), Della Colleta, H.H.M.(UNICAMP Instituto de Biologia Departamento de Microbiologia e Imunologia)
Format: Article
Language:English
Subjects:
Bovine mastitis
cytotoxic necrotizing factor
Escherichia coli
fator necrosante citotóxico
fatores de virulência
Mastite bovina
virulence factors
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Summary:This report describes the production of cytotoxic necrotizing factor (CNF) by an Escherichia coli strain isolated from clinical bovine mastitis with clinical signs of toxemia The animal had hemorrhages and necrosis of the mammary glands, and died within 24 hours after the onset of clinical signs. In addition to CNF identification, alpha-haemolysin and siderophores production were also characterized in this strain. This report reinforce the association of CNF and alpha-haemolysin production in E. coli virulence associated with clinical cases of severe bovine mastitis.
ISSN:0102-0935
1678-4162
0102-0935
DOI:10.1590/S0102-09352002000600015