Virulence factors and clonal relationships among Escherichia coli strains isolated from broiler chickens with cellulitis.
In this study, we compared Escherichia coli isolates from chickens with avian cellulitis with those from feces of healthy chickens. Cellulitis-derived strains presented phenotypic and genotypic characteristics of greater virulence than did the fecal isolates. Phylogenetic analysis by repetitive extragenic palindromic-PCR showed that, in agreement with their virulence characteristics, the cellulitis isolates form two clonal groups distinct from the fecal isolates.
de Brito
Benito Guimarães
BG
Departamento de Microbiologia, Universidade Estadual de Londrina, Campus Universitário, Caixa Postal 6001, 86051-970 Londrina, Parana, Brazil.
Gaziri
Luiz Carlos J
LC
Vidotto
Marilda C
MC
D000818:Animals; D002481:Cellulitis / Q000662:veterinary*; D002645:Chickens / Q000382:microbiology*; D004926:Escherichia coli / Q000187:drug effects / Q000235:genetics / Q000472:pathogenicity*; D016133:Polymerase Chain Reaction; D011201:Poultry Diseases / Q000382:microbiology*; D037521:Virulence Factors / Q000235:genetics
D037521:Virulence Factors