Virulence properties and resistance profile of Escherichia coli isolated from air sac of turkeys

• Grant number: 11/18204-6
• Support Opportunities: Regular Research Grants
• Start date: December 01, 2011
• End date: November 30, 2013
• Field of knowledge: Agronomical Sciences - Veterinary Medicine - Animal Pathology
• Principal Investigator: Terezinha Knöbl
• Grantee: Terezinha Knöbl
• Host Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated researchers: Andrea Micke Moreno

Abstract

The turkey commercial farms are expanding in Brazil in the last two decades, with a significant increase in the sausages and meat products consumption. However, the national literature about turkey´s diseases is poor. The aerossaculitis is a frequent cause of poultry carcasses condemnation in slaughterhouses. Pathogenic Escherichia coli, known as APEC, is the most frequently agent involved in poultry aerossaculitis. The APEC pathotype classification is based on the presence of virulence genes associated with survival of agent from host defense mechanisms, being able to adhere and colonize the respiratory tract mucous membranes, capture iron and resist to serum phagocytic action. The virulence genes frequency in APEC has been correlated with virulence for chickens. Some virulence genes can be horizontally transmitted among bacteria through plasmids transference. Plasmids can also carry genes for antimicrobial resistance. The objective of this study is to investigate the presence of virulence genes and to appoint a antimicrobial sensitive profile in E. coli strains isolated from the air sacs of airssaculitis condemned turkeys. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CUNHA, MARCOS PAULO VIEIRA; XAVIER DE OLIVEIRA, MARIA GABRIELA; VILELA DE OLIVEIRA, MIRELA CAROLINE; DA SILVA, KETRIN CRISTINA; GOMES, CLEISE RIBEIRO; MORENO, ANDREA MICKE; KNOEBL, TEREZINHA. Virulence Profiles, Phylogenetic Background, and Antibiotic Resistance of Escherichia coli Isolated from Turkeys with Airsacculitis. SCIENTIFIC WORLD JOURNAL, 2014. (11/18204-6)

SAIDENBERG, ANDRE BECKER SIMOES; VAN VLIET, ARNOUD H. M.; BRANDAO, PAULO EDUARDO; DE SA, LILIAN ROSE MARQUES; CUNHA, MARCOS PAULO VIEIRA; LA RAGIONE, ROBERTO M.; KNOBL, TEREZINHA. Genomic characterization of enteropathogenic Escherichia coli (EPEC) of avian origin and rabbit ileal loop response; a pet macaw (Ara chloropterus) as a possible zoonotic reservoir. VETERINARY QUARTERLY, v. 40, n. 1, p. 331-341, JAN 1 2020. (11/18204-6)

CUNHA, MARCOS PAULO VIEIRA; XAVIER DE OLIVEIRA, MARIA GABRIELA; VILELA DE OLIVEIRA, MIRELA CAROLINE; DA SILVA, KETRIN CRISTINA; GOMES, CLEISE RIBEIRO; MORENO, ANDREA MICKE; KNOEBL, TEREZINHA. Virulence Profiles, Phylogenetic Background, and Antibiotic Resistance of Escherichia coli Isolated from Turkeys with Airsacculitis. SCIENTIFIC WORLD JOURNAL, v. N/A, p. 8-pg., 2014-01-01. (11/18204-6)