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E. Okello · SciRah

Researcher profile · Semantic Scholar

E. Okello

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E. Okello — researcher profile on SciRah

h-index: 13
Works: 43
Citations: 401

Most-cited papers

Prevalence of Fascioliasis and Associated Economic Losses in Cattle Slaughtered at Lira Municipality Abattoir in Northern Uganda
Lawrence George Opio, E. Abdelfattah, Joshua Terry, Steven Odongo +1 more
2021Animals52 citations Open access
Semantic Scholar
Molecular epidemiology of coagulase-negative Staphylococcus species isolated at different lactation stages from dairy cattle in the United States
Stephen Jenkins, E. Okello, P. Rossitto, T. Lehenbauer +8 more
2019PeerJ45 citations Open access
Semantic Scholar
A Systematic Review of the Recent Techniques Commonly Used in the Diagnosis of Mycoplasma bovis in Dairy Cattle
Hedmon Okella, K. Tonooka, E. Okello
2023Pathogens27 citations Open access
Semantic Scholar
Structural insight in the inhibition of adherence of F4 fimbriae producing enterotoxigenic Escherichia coli by llama single domain antibodies
K. Moonens, I. Van den Broeck, E. Okello, E. Pardon +3 more
2015Veterinary Research24 citations Open access
Semantic Scholar
Epidemiology of antimicrobial resistance (AMR) on California dairies: descriptive and cluster analyses of AMR phenotype of fecal commensal bacteria isolated from adult cows
E. Abdelfattah, P. Ekong, E. Okello, Tapakorn Chamchoy +11 more
2021PeerJ22 citations Open access
Semantic Scholar
Prevalence of antimicrobial resistance in fecal Escherichia coli and Enterococcus spp. isolates from beef cow-calf operations in northern California and associations with farm practices
C. Morris, D. Wickramasingha, E. Abdelfattah, R. Pereira +2 more
2023Frontiers in Microbiology18 citations Open access
Semantic Scholar
2019 Survey of Antimicrobial Drug Use and Stewardship Practices in Adult Cows on California Dairies: Post Senate Bill 27
E. Abdelfattah, P. Ekong, E. Okello, Deniece R. Williams +5 more
2021Microorganisms18 citations Open access
Semantic Scholar
An In Silico In Vitro and In Vivo Study on the Influence of an Eggplant Fruit (Solanum anguivi Lam) Diet on Metabolic Dysfunction in the Sucrose-Induced Diabetic-like Fruit Fly (Drosophila melanogaster)
E. Nwanna, R. Ojo, Nusrat Shafiq, Awais Ali +2 more
2024Foods17 citations Open access
Semantic Scholar
ADMET profiling and molecular docking of potential antimicrobial peptides previously isolated from African catfish, Clarias gariepinus
Hedmon Okella, E. Okello, Andrew G. Mtewa, Hilda Ikiriza +12 more
2022Frontiers in Molecular Biosciences17 citations Open access
Semantic Scholar
Survey on Antimicrobial Drug Use Practices in California Preweaned Dairy Calves
E. Okello, Deniece R. Williams, Wagdy R. ElAshmawy, Jaymes Adams +3 more
2021Frontiers in Veterinary Science17 citations Open access
Semantic Scholar
Enterotoxigenic Escherichia coli strains are highly prevalent in Ugandan piggeries but disease outbreaks are masked by antibiotic prophylaxis
E. Okello, K. Moonens, J. Erume, H. De Greve
2014Tropical Animal Health and Production16 citations
Semantic Scholar
Bayesian estimation of sensitivity and specificity of a rapid mastitis test kit, bacterial culture, and PCR for detection of Staphylococcus aureus, Streptococcus species, and coliforms in bovine milk samples.
Tapakorn Chamchoy, E. Okello, Deniece R. Williams, K. Tonooka +4 more
2022Journal of Dairy Science13 citations Open access
Semantic Scholar
Association between herd management practices and antimicrobial resistance in Salmonella spp. from cull dairy cattle in Central California
R. Pereira, Deniece R. Williams, P. Rossitto, J. Adaska +9 more
2019PeerJ13 citations Open access
Semantic Scholar
Effect of dry cow therapy on antimicrobial resistance of mastitis pathogens post-calving
E. Okello, Wagdy R. ElAshmawy, Deniece R. Williams, T. Lehenbauer +1 more
2023Frontiers in Veterinary Science12 citations Open access
Semantic Scholar
Effectiveness of Intramammary Antibiotics, Internal Teat Sealants, or Both at Dry-Off in Dairy Cows: Clinical Mastitis and Culling Outcomes
S. Aly, E. Okello, Wagdy R. ElAshmawy, Deniece R. Williams +6 more
2022Antibiotics11 citations Open access
Semantic Scholar
Effect of Antimicrobial Treatment on the Dynamics of Ceftiofur Resistance in Enterobacteriaceae from Adult California Dairy Cows
D. Sheedy, E. Okello, Deniece R. Williams, K. Precht +3 more
2021Microorganisms8 citations Open access
Semantic Scholar
Effect of Multi-Species Probiotic Supplementation on Fecal Microbiota in Pre-Weaned Holstein Dairy Calves in California
Yoon-Joo Lee, H. A. Rossow, Deneice R. Williams, Sejin Cheong +3 more
2025Microorganisms7 citations Open access
Semantic Scholar
Identification, Synthesis, and In Vitro Activities of Antimicrobial Peptide from African Catfish against the Extended-Spectrum Beta-Lactamase (ESBL)-Producing Escherichia coli
Hedmon Okella, Steven Odongo, Didier Vertommen, E. Okello
2024Pharmaceutics7 citations Open access
Semantic Scholar
Potential impacts to antibiotics use around the dry period if selective dry cow therapy is adopted by dairy herds: An example of the western US.
F. C. Ferreira, B. Martínez-López, E. Okello
2022Preventive Veterinary Medicine7 citations Open access
Semantic Scholar
Effectiveness of Intramammary Antibiotics, Internal Teat Sealants, or Both at Dry-Off in Dairy Cows: Milk Production and Somatic Cell Count Outcomes
Wagdy R. ElAshmawy, E. Okello, Deniece R. Williams, R. Anderson +3 more
2022Veterinary Sciences6 citations Open access
Semantic Scholar
2018 Survey of antimicrobial drug use and stewardship practices in adult cows on California dairies: post-Senate Bill 27
P. Ekong, E. Abdelfattah, E. Okello, Deniece R. Williams +5 more
2021PeerJ6 citations Open access
Semantic Scholar
2018 Survey of factors associated with antimicrobial drug use and stewardship practices in adult cows on conventional California dairies: immediate post-Senate Bill 27 impact
P. Ekong, E. Abdelfattah, E. Okello, Deniece R. Williams +4 more
2021PeerJ6 citations Open access
Semantic Scholar
Antimicrobial drug use and its association with antimicrobial resistance in fecal commensals from cows on California dairies
E. Abdelfattah, P. Ekong, E. Okello, Tapakorn Chamchoy +8 more
2025Frontiers in Veterinary Science5 citations Open access
Semantic Scholar
Association between automatic milking system parameters and intramammary infections in dairy cows at dry-off
Jonathan Ongom, Hedmon Okella, F. Ferreira, E. Okello
2024Frontiers in Animal Science5 citations Open access
Semantic Scholar
Orally Fed Recombinant Lactococcus lactis Displaying Surface Anti-Fimbrial Nanobodies Protects Piglets against Escherichia coli Causing Post-Weaning Diarrhea
E. Okello, K. Moonens, J. Erume, H. De Greve
2021Agriculture5 citations Open access
Semantic Scholar
Factors Associated with Antimicrobial Stewardship Practices on California Dairies: One Year Post Senate Bill 27
E. Abdelfattah, P. Ekong, E. Okello, Deniece R. Williams +3 more
2022Antibiotics4 citations Open access
Semantic Scholar
Lobaric acid prevents the adverse effects of tetramethrin on the estrous cycle of female albino Wistar rats
H. T. Nguyen, H. Polimati, Satya Sowbhagya Priya Annam, E. Okello +3 more
2022PLoS ONE3 citations Open access
Semantic Scholar
Effect of Intramammary Dry Cow Antimicrobial Treatment on Fresh Cow’s Milk Microbiota in California Commercial Dairies
Carl Basbas, S. Aly, E. Okello, B. Karle +5 more
2022Antibiotics3 citations Open access
Semantic Scholar
Estimating the Rates of Acquisition and loss of Resistance of Enterobacteriaceae to Antimicrobial Drugs in Pre-Weaned Dairy Calves
Elisa Cella, E. Okello, P. Rossitto, B. Cenci-Goga +7 more
2021Microorganisms3 citations Open access
Semantic Scholar
Eggplant (Solanum spp.) Fruits Dietary Polyphenols Upregulate the Expression of Glucose Transporter Protein in Palmitate-Induced Diabetic Cell Line C2C12
E. Nwanna, Emmanuel Mukwevho, E. Okello, A. Ayeleso +2 more
2025International Journal of Molecular Sciences2 citations Open access
Semantic Scholar
Relationship between diversity and organisational performance of state corporations in the Coastal region of Kenya
E. Okello
20152 citations
Semantic Scholar
Secondary metabolites from Lobaria pulmonaria (L.) Hoffm. target key metabolic enzymes: a novel strategy against multidrug-resistant tuberculosis
H. T. Nguyen, Vishnu Nayak Badavath, Siddhartha Maji, H. Polimati +5 more
2026RSC Advances1 citations Open access
Semantic Scholar
Analysis of Antimicrobial Residues and Resistance Profiles of Escherichia coli and Enterococcus spp. in Lagoon Water from California Dairies
Si-Qi Wang, S. Aly, E. Abdelfattah, P. Ekong +7 more
2025Veterinary Sciences1 citations Open access
Semantic Scholar
Correction: Secondary metabolites from Lobaria pulmonaria (L.) Hoffm. target key metabolic enzymes: a novel strategy against multidrug-resistant tuberculosis
H. T. Nguyen, Vishnu Nayak Badavath, Siddhartha Maji, H. Polimati +5 more
2026RSC Advances0 citations Open access
Semantic Scholar
Prevalence of selected Shiga toxin-producing Escherichia coli vaccine antigen genes among two geographically distinct ruminant populations
C. Quinn, Rhys Bruce, Joanne Cosgrave, Laura Sala-Comorera +9 more
2026Journal of Medical Microbiology0 citations Open access
Semantic Scholar
Epidemiology of Antimicrobial Residues and Phenotypic Resistance of Bacterial Isolates from Waste Milk on California Dairies
Yotam Mihreteab, E. Okello, Pramod Pandey, E. Abdelfattah +7 more
2026Microorganisms0 citations Open access
Semantic Scholar
Spatial distribution and socioeconomic correlates of raw milk retail sites in California: A multi-scale analysis of global and local regression models.
Henry Wamala, E. Okello
2026Preventive Veterinary Medicine0 citations
Semantic Scholar
Antimicrobial susceptibility of Enterococcus and Bacillus spp. isolated from commercial probiotic products indicated for use in cattle
R. Branco-Lopes, E. Okello, K. Tonooka, Hedmon Okella +2 more
2026JDS Communications0 citations Open access
Semantic Scholar
Abstract 1689 In vitro activity of antimicrobial peptide from African catfish against the Extended-Spectrum Beta-Lactamase (ESBL) producing Escherichia coli
Hedmon Okella, E. Okello
2024Journal of Biological Chemistry0 citations Open access
Semantic Scholar
Using Zoom Annotate to Facilitate Online Focus Groups in Veterinary Medicine Education Research.
Sarah J. Al-Mazroa Smith, A. Kreuder, Raissa R. Raineri, William E. Sander +3 more
2023Journal of Veterinary Medical Education0 citations
Semantic Scholar
Peer Review #1 of "Dairy management practices associated with multi-drug resistant fecal commensals and Salmonella in cull cows: a machine learning approach (v0.2)"
P. Pandit, Deniece R. Williams, P. Rossitto, J. Adaska +132 more
20210 citations Open access
Semantic Scholar
Protocol for a Scoping/Systematic Review: Non-antimicrobial approaches for the prevention or treatment of infectious bovine keratoconjunctivitis applicable to cow-calf operations.
E. Fausak, G. Maier, F. Samah, A. Garzon +3 more
20190 citations
Semantic Scholar
Enterotoxigenic Escherichia coli strains are highly prevalent in Ugandan piggeries but disease outbreaks are masked by antibiotic prophylaxis
E. Okello, K. Moonens, J. Erume, H. De Greve
2014Tropical Animal Health and Production0 citations
Semantic Scholar

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Deniece R. Williams×16
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B. Karle×13
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Wagdy R. ElAshmawy×8

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Hedmon Okella×7

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