Emmanuel Okello

Assistant Specialist in Cooperative Extension

Population Health & Reproduction


Education
2006, BVM, Makerere University , Kampala, Uganda
2010, MSc, Katholieke University, Leuven, Belgium
2015, PhD, Vrije University of Brussel, Brussels, Belgium
2018, Postdoctoral training, University of California Davis,
Active Research Grants
Co-Principal Investigator, Effect of Antimicrobial Treatments on rates of acquisition and loss of antimicrobial resistance in adult cattle on California dairies, Sharif Aly (Principal Investigator), California Department of Food and Agriculture
Co-Principal Investigator, Antimicrobial resistance genotype in adult cattle on California dairies, Sharif Aly (Principal Investigator), California Department of Food and Agriculture
Co-Principal Investigator, Development of an economic tool to optimize mastitis management programs in California, Fernanda C. Ferreira (Principal Investigator), CDFA
Co-Investigator, Development of a prophylactic vaccine against VTEC - A one health approach, Siobhán McClean (UC Dublin) & Sharif Aly (UC Davis) (Principal Investigator), UCD2 Transatlantic One Health Alliance
Co-Principal Investigator, Survey and longitudinal study on antimicrobial treatments and resistance in adult cattle on California Dairies, Sharif Aly (Principal Investigator), California Department of Food and Agriculture
Co-Principal Investigator, Association between antimicrobial treatments at dry-off and antimicrobial resistance in adult cattle on California dairies, Sharif Aly (Principal Investigator), California Department of Food and Agriculture
Research Focus
International livestock health and antimicrobial resistance
Specialty Focus
Promoting the judicious use of antibiotics and control of antimicrobial resistance on California dairy herds. Working with farmers and other stakeholders to improve livestock health and productivity.
Ten Recent Publications

2019
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

2019
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