Retrospective Study of the Burden of Avian influenza in Kano State, Nigeria: A secondary Data Analysis 2015-2017 - Chieloka, Okoli; Ameh, Celestine; Balogun, Muhammad; Durosinlorun, Abdulkareem; Vakuru, Columba; Olaniran, Alabi (East African Journal of Agriculture and Biotechnology, 2020)