RT Journal Article T1 Prevalence of avian pathogenic escherichia coli (APEC) clone harboring sfa gene in Brazil A1 Knöbl, Terezinha A1 Moreno, Andrea Micke A1 Paixão, Renata A1 Tardelli Gomes, Tânia Aparecida A1 Midolli Vieira, Mônica Aparecida A1 Silva Leite, Domingos da A1 Blanco Álvarez, Jesús Eulogio A1 Piantino Ferreira, Antônio José K1 Escherichia coli sfa+ AB 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: iuc 90%, fim 86% neuS 60%, hly 34%, tsh 28%, crl/csg 26%, iss 26%, pap 18%, and 14% cnf. Strains from the same farm presented more than onegenotypic pattern belonging to different profiles in AFLP. AFLP showed a clonal relation between Escherichia coli sfa+ serogroup O6. The virulence genes found in these strains reveal some similarity with extraintestinal E. coli (ExPEC), thus alerting for potential zoonotic risk PB Hindawi SN 2356-6140 YR 2012 FD 2012 LK http://hdl.handle.net/10347/21907 UL http://hdl.handle.net/10347/21907 LA eng NO Knoebl, T., Moreno, A. M., Paixao, R., Tardelli Gomes, T. A., Midolli Vieira, M. A., da Silva Leite, D. et al. (2012). Prevalence of avian pathogenic escherichia coli (APEC) clone harboring sfa gene in Brazil. The scientific world journal, vol.2012, 7 NO This study was supported by FAPESP—Fundação de Amparo a Pesquisa do Estado de São Paulo Research Project no. 05/57500-9 DS Minerva RD 23 abr 2026