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A complete list can be found on                          and

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Selected publications:

  1. Shojadoost B., Yitbarek A., Alizadeh M., Kulkarni R.R., Astill J., Boodhoo N., and Sharif S. (2021). Centennial Review: Effects of vitamins A, D, E, and C on the chicken immune system. Poultry Science. 100(4):100930. 

  2. Xie X.T., Yitbarek A., Astill J., Singh S., Khan S.U., Sharif S., Poljak Z., and Greer A.L. (2021). Within-host model of respiratory virus shedding and antibody response to H9N2 avian influenza virus vaccination and infection in chickens. Infectious Disease Modeling. 6:490-502. 

  3. Xie X.T., Yitbarek A., Uddin Khan S., Sharif S., Poljak Z., and Greer A.L. (2020). A within-host mathematical model of H9N2 avian influenza infection and type-I interferon response pathways in chickens. Journal of Theoretical Biology. 499:110320. 

  4. ​Yitbarek A., Astill J., Hodgins D.C., Parkinson J., Nagy É., and Sharif, S. (2019). Commensal gut microbiota can modulate adaptive immune responses in chickens vaccinated with whole inactivated avian influenza virus subtype H9N2. Vaccine, 37(44), 6640-6647.​

  5. Alkie, T.N., Yitbarek A., Hodgins D.C., Kulkarni R.R., Taha-Abdelaziz K., and Sharif S. (2019). Development of innate immunity in chicken embryos and newly hatched chicks: A disease control perspective. Avian Pathology. 1-75.

  6. Leung H., Yitbarek A., Snyder R., Patterson R., Barta J.R., Karrow N., and Kiarie E. (2018) Responses of broiler chickens to Eimeria challenge when fed a nucleotide-rich yeast extract. Poultry Science. pp 01-12. 

  7. ​Alkie T.N., Yitbarek A., Taha-Abdelaziz K., Astill J., and Sharif S. (2018). Characterization of immunogenicity of avian influenza antigens encapsulated in PLGA nanoparticles following mucosal and subcutaneous delivery in chickens. PLoS One. 13(11): e0206324. 

  8. Yitbarek A., Taha-Abdelaziz K., Hodgins D.C., Read L., Nagy É., Weese J.S., Caswell J.L., Parkinson J., and Sharif S. (2018). Gut microbiota-mediated protection against influenza virus subtype H9N2 in chickens is associated with modulation of the innate responses. Scientific Report. 8(1):16367. 

  9. Astill J., Alkie T., Yitbarek A., Taha-Abdelaziz K., Shojadoost B., Petrik J.J., Nagy É., and Sharif S. (2018). A Comparison of Toll-Like Receptor 5 and 21 Ligands as Adjuvants for a Formaldehyde Inactivated H9N2 Avian Influenza Virus Vaccine in Chickens. Viral Immunology. (9):605-612. 

  10. Yitbarek A.*, Taha-Abdelaziz K., Alkie T.N., Hodgins D.C., Read L.R., Weese J.S., and Sharif S. (2018). PLGA-encapsulated CpG ODN and Campylobacter jejuni lysate modulate cecal microbiota composition in broiler chickens experimentally challenged with C. jejuni. Scientific Report. 8(1):12076. (*Shared first authorship)

  11. ​Yitbarek A., Alkie T., Taha-Abdelaziz K., Astill J., Rodriguez-Lecompte J.C., Parkinson J., Nagy É., and Sharif S. (2018). Gut microbiota modulates type I interferon and antibody-mediated immune responses in chickens infected with influenza virus subtype H9N2. Beneficial Microbes. 9(3):417-427. 

  12. Yitbarek A., Weese J.S., Alkie T.N., Parkinson J., and Sharif S. (2018). Influenza A virus subtype H9N2 infection disrupts the composition of intestinal microbiota of chickens. FEMS Microbiology Ecology. 94(1). 

  13. Yitbarek A., López S., Tenuta M., Asgedom H., France J., Nyachoti C.M. and E. Kebreab. (2017). Effect of dietary phytase supplementation on greenhouse gas emissions from soil after swine manure application. Journal of Cleaner Production. 166: pp 1122-1130.

  14. Rodriguez-Lecompte J.C., A. Yitbarek*, T. Cuperus, H. Echeverry, and A. van Dijk. (2016). The immunomodulatory effect of vitamin D in chickens is dose-dependent and influenced by calcium and phosphorus levels. Poultry Science. 95:2547-2556. (*Shared first authorship)​

  15. Echeverry H., A. Yitbarek, P. Munyaka, M. Alizadeh, A. Cleaver, G. Camelo-Jaimes, P. Wang, K. O , J.C. Rodriguez-Lecompte. (2016). Organic trace mineral supplementation enhances local and systemic innate immune responses and modulates oxidative stress in broiler chickens. Poultry Science. 95:518-527.

  16. Yitbarek A., Echeverry H., Munyaka P., Rodriguez-Lecompte J.C. 2015. Innate immune response of pullets fed diets supplemented with prebiotics and synbiotics. Poultry Science. 94(8):1802-1811.

  17. ​Waititu S. M., A. Yitbarek, E. Matini, H. Echeverry, E. Kiarie, J. C. Rodriguez-Lecompte, and C. M. Nyachoti. (2014). Effect of supplementing direct-fed microbials on broiler performance, nutrient digestibilities, and immune responses. Poultry Science 93 (3): 625-635.

  18. Yitbarek A., J. C. Rodriguez-Lecompte, H. M. Echeverry, P. Munyaka, N. Barjesteh, S. Sharif, and G. Camelo-Jaimes. (2013). Performance, histomorphology, and Toll-like receptor, chemokine, and cytokine profile locally and systemically in broiler chickens fed diets supplemented with yeast-derived macromolecules. Poultry Science 92 (9): 2299-2310 .

  19. ​Yitbarek A., H. Echeverry, J. Brady, J. Hernandez-Doria, G. Camelo-Jaimes, S. Sharif, W. Guenter, J.D. House, and J.C. Rodríguez-Lecompte. (2012). Innate immune response to yeast derived carbohydrates in broiler chickens fed organic diets and challenged with clostridium perfringens. Poultry Science, 91:1105–1112.

  20. Rodríguez-Lecompte, J.C., A. Yitbarek, J. Brady, S. Sharif, Cavanagh M. D., G. Crow, W. Guenter, J. D. House, G. Camelo-Jaimes. (2012). The effect of microbial-nutrient interaction on the immune system of young chicks following early probiotic and organic acid administration. Journal of Animal Science, 90:2246-2254.

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