Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/96929
Type: Nota
Title: Colibacillosis In Lambs Is Associated To Type I Heat-stable Enterotoxin In A Farm In São Paulo State, Brazil [colibacilose Em Carneiros é Associada à Enterotoxina Termo-estável Do Tipo I Em Uma Propriedade Rural Do Estado De São Paulo, Brasil]
Author: Aragao A.Z.B.
Teocchi M.A.
Fregolente M.C.D.
Gatti M.S.V.
Pires A.V.
Yano T.
Abstract: Twenty seven (48.2%) culture supernatants of 56 Escherichia coli isolated from diarrheic lamb feces (7 to 10 days old) in São Paulo State, Brazil, presented positive results to suckling mice assay (fluid accumulation) but none caused cytopathic effects on Vero and CHO cells, indicating that these strains did not produced LT or VT toxins. PCR assays showed that these 27 E. coli strains harbored estA, that codifies for STa, but not for stx1, stx2 or cnf genes. The positive STa strains were checked for genes that codify for F41, F17 and K99 fimbriae, wich are considered colonization factors in ETEC. Only F17 was detect in two samples (7.4%). Twelve of 27 STa positive carried hlyA gene and presented hemolytic activity in blood Agar. Presence of rotavirus was not detected among the diarrheic feces. These data suggests that STa must be an important diarrheagenic factor to small ruminants in São Paulo State.
Editor: 
Rights: aberto
Identifier DOI: 10.1590/S0103-84782012005000018
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84864511129&partnerID=40&md5=90b0a34832561dd907d91e78bc872481
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.