Prevalence of Avian PathogenicEscherichia coli(APEC) Clone HarboringsfaGene in Brazil

Author:

Knöbl Terezinha1,Micke Moreno Andrea1ORCID,Paixão Renata1,Gomes Tânia Aparecida Tardelli2,Vieira Mônica Aparecida Midolli1,da Silva Leite Domingos3,Blanco Jesus E.4,Ferreira Antônio José Piantino1ORCID

Affiliation:

1. Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo. Avenue Prof. Dr. Orlando Marques de Paiva, 87 05508-900 São Paulo, SP, Brazil

2. Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, 04023-062 São Paulo, SP, Brazil

3. Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil

4. Laboratório de Referência de E. coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela (USC), 27002 Lugo, Spain

Abstract

Escherichia coli sfa+ strains isolated from poultry were serotyped and characterized by polymerase chain reaction (PCR) and amplified fragment length polymorphism (AFLP). Isolates collected from 12 Brazilian poultry farms mostly belonged to serogroup O6, followed by serogroups O2, O8, O21, O46, O78, O88, O106, O111, and O143. Virulence genes associated were:iuc90%,fim86%neuS60%,hly34%,tsh28%,crl/csg26%,iss26%,pap18%, and 14%cnf. Strains from the same farm presented more than one genotypic pattern belonging to different profiles in AFLP. AFLP showed a clonal relation betweenEscherichia coli sfa+ serogroup O6. The virulence genes found in these strains reveal some similarity with extraintestinalE. coli(ExPEC), thus alerting for potential zoonotic risk.

Funder

Fundação de Amparo à Pesquisa do Estado de São Paulo

Publisher

Hindawi Limited

Subject

General Environmental Science,General Biochemistry, Genetics and Molecular Biology,General Medicine

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