Diversity of <i>Escherichia coli</i> from Faecal Samples of Danish Calves with Diarrhoea.

ABSTRACT: Several different pathogens, including Escherichia coli, are strongly associated with calf diarrhoea. The population diversity of intestinal E. coli within each diarrhetic calf and between diarrhetic calves is not well understood. In the present study, 391 faecal samples were obtained during 2023-2024 from Danish dairy calves with diarrhoea. Semi-quantified growth estimates of E. coli after culturing did not reflect the diarrhetic grade nor whether E. coli was the only pathogen observed in the sample. From each sample, five isolates were subjected to multiple-locus variable-number tandem repeat analysis (MLVA) and revealed that 70% of faecal samples contained more than one type of E. coli. Genotyping, sequence typing and in silico serotyping showed a larg

SUBMITTER: Alencar ALF 

PROVIDER: S-EPMC12568266 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature