The causative organism of Avian influenza is a? by Sunday | Dec 20 | Agricultural Science WAEC | 0 comments A. bacterium B. virus C. fungus D. protozoan. Correct Answer: Option B – virus Users Also Read These:The causative agent of bird flu is a?The causative agent of Poliomyelitis is?Causative organism of diseases in crop production do…The causative organism of sleeping sickness is the?The diagram above shows the dentition of an…