Okello E, Williams DR, ElAshmawy WR, Adams J, Pereira R V, Lehenbauer TW, Aly SS. Survey on Antimicrobial Drug Use Practices in California Preweaned Dairy Calves. Frontiers in Veterinary Science, 8:636670, 2021. Link


Abdelfattah EM, Ekong P, Okello E, Chamchoy T, Karle BM, Black R, Sheedy DB, El-Ashmawy W, Williams DR, Califano D, Duran L, Ongom J, Lehenbauer TW, Bryne BA, Aly SS. Epidemiology of antimicrobial resistance (AMR) on California dairies: Descriptive and cluster analyses of adult cow fecal Escherichia coli and Enterococcus spp. AMR phenotype. PeerJ, 9: e11108, 2021. Link


Sheedy DB, Okello E, Williams DR, Precht K, Cella E, Lehenbauer TW, Aly SS. Effect of antimicrobial treatment on the dynamics of ceftiofur resistance in Enterobacteriaceae from adult California dairy cows. Microorganisms 9: 828, 2021. Link


Okello E, Moonens K, Erume J, De Greve H. Orally fed recombinant lactococcus lactis displaying surface anti-fimbrial Nanobodies protects piglets against Escherichia coli causing post-weaning diarrhea. Agriculture 11, 186.  Agriculture 11(3), 186, 2021. Link


Opio, LG, Abdelfattah EM, Terry J., Odongo S, Okello E. 2021. Prevalence of fascioliasis and associated economic losses in cattle slaughtered at Lira municipality abattoir in northern Uganda. Animals 11, 1–10. Link


Pereira R, Williams DR, Rossitto P, Adaska J, Okello E, Champagne J, Lehenbauer TW, Li X, Chase J, Nguyen T, Pires AFA, Atwill ER, Aly SS. Association between herd management practices and antimicrobial resistance in Salmonella spp. from cull dairy cattle in Central California. PeerJ, 7: e6546, 2019. Link


Jenkins S, Okello E, Rossitto P, Lehenbauer TW, Champagne J, Penedo M, Arruda A, Godden S, Rapnicki P, Gorden P, Timms L, Aly SS. Molecular epidemiology of coagulase-negative Staphylococcus species isolated at different lactation stages from dairy cattle in the United States. PeerJ, 7: e6749, 2019. Link


Moonens K, Van den Broeck I, Okello E, Pardon E, De Kerpel M, Remaut H, De Greve H. Structural insight in the inhibition of adherence of F4 fimbriae producing enterotoxigenic Escherichia coli by llama single domain antibodies. Veterinary research, 46: 14, 2015. Link


Okello E, Moonens K, Erume J, De Greve H. Enterotoxigenic Escherichia coli strains are highly prevalent in Ugandan piggeries but disease outbreaks are masked by antibiotic prophylaxis. Tropical animal health and production, 47(1): 117-22, 2015. Link