ArticleTropical animal health and production2015
Epidemiological studies on Escherichia coli O157:H7 in Egyptian sheep.
Article in Tropical animal health and production, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Shiga Toxin-ProducingMicroorganisms · 2025Review
- Investigating enterohemorrhagicOpen veterinary journal · 2025Article
- Detection of multidrug-resistant Shiga toxin-producing Escherichia coli in some food products and cattle faeces in Al-Sharkia, Egypt: one health menace.BMC microbiology · 2023Article
- The role of Musca domestica and milk in transmitting pathogenic multidrug-resistant Escherichia coli and associated phylogroups to neonatal calves.Environmental science and pollution research international · 2022Article
- Pathotyping and antimicrobial susceptibility testing of Escherichia coli isolates from neonatal calves.Veterinary research communications · 2022Article
- Prevalence and Whole-Genome Sequence-Based Analysis of Shiga Toxin-Producing Escherichia coli Isolates from the Recto-Anal Junction of Slaughter-Age Irish Sheep.Applied and environmental microbiology · 2021Article
- Molecular characterization of enterohemorrhagicVeterinary world · 2021Article
- Molecular characterization of pathogenic Escherichia coli isolated from diarrheic and in-contact cattle and buffalo calves.Tropical animal health and production · 2020Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In the present work, the epidemiological role of apparently healthy sheep in transmission of Escherichia coli O157:H7 in different seasons was investigated. Fecal samples (convenience sampling) of apparently healthy farmed sheep (three farms, n = 70) and from 15 wandering flocks fed on city wastes (n = 80) in the Giza governorate were examined. The samples were collected in spring under mild weather conditions and during hot summer to be compared. Out of the 150 animals, 13 (8.7%) were E. coli O157 shedders. The 13 ovine sorbitol-negative E. coli O157 were characterized by different PCR sets. The eae gene was detected in 11 isolate (85%), stx1 in 3 isolates (23%), stx2 in 8 isolates (62%), and finally the hlyA in 11 isolate (85%). Among the 13 isolates, 2 strains (15%) were positive for eae, stx1, stx2, and hlyA as gene combination, one isolate (8%) for eae, stx1, and hlyA, 5 isolates (38%) for eae, stx2, and hlyA, 1 isolate (8%) for eae and stx2, 2 isolates (15%) contained eae and hlyA, 1 isolate (8%) contained hlyA only, and finally, 1 isolate (8%) did not contain any of these genes. None of the isolates showed the gene combination eae stx1, stx1 hlyA, or stx2 hlyA. The results indicated significant association of unfavorable weather and management conditions on O157:H7 shedding while the age or sex did not play any role in this process.
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