Phenotypic and genotypic characterization of enterotoxigenic Escherichia coli isolated from diarrheic calves in Argentina.

ABSTRACT: Enterotoxigenic Escherichia coli (ETEC) is the most common and global cause of neonatal calf diarrhea, but there is a little information regarding calf ETEC strains in Argentina. In this study, five ETEC isolates from diarrheic dairy calves (2-10 d old) from Buenos Aires and Cordoba, Argentina were characterized on the basis of virulence gene (VG) pattern, O:H serotyping, hemolytic phenotype, phylogenetic group affiliation, antimicrobial (AM) resistance profile, and presence of integron class 1 and 2. The five isolates were examined by polymerase chain reaction (PCR) for the presence of 18 bovine VGs and showed the following genotypes: F5⁺/F41⁺/sta ⁺ (D242), F5⁺/sta ⁺ (D158), F5⁺/sta ⁺

SUBMITTER: Gonzalez Pasayo RA 

PROVIDER: S-EPMC6500866 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature