Study of gene variations in E. coli strains from cattle and humans
Author Information
Author(s): Bardiau Marjorie, Labrozzo Sabrina, Mainil Jacques G
Primary Institution: University of Liège
Hypothesis
Are the polymorphisms in the tir, eae, and tccP2 genes of O26 EPEC and EHEC strains host specific?
Conclusion
Polymorphisms in the tir and eae genes were not numerous and did not differ between human and bovine strains, while some tccP2 variants were pathotype specific.
Supporting Evidence
- 10 out of 70 strains showed polymorphisms in the tir and eae genes.
- 67% of the strains were positive for the tccP2 gene.
- None of the polymorphisms were specific to bovine or human isolates.
Takeaway
The study looked at tiny changes in certain genes of E. coli from cows and people to see if they were different based on where they came from, but they found that wasn't the case for most genes.
Methodology
The study involved testing 70 EHEC and EPEC strains for gene polymorphisms using PCR and sequencing.
Limitations
Further investigations on a larger number of strains are needed to confirm the specificity of tccP2 variants.
Participant Demographics
Strains isolated from bovines (42) and humans (28) across various countries.
Statistical Information
P-Value
p = 0.078
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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