oestrus ovis is an economically important parasite of small ruminants and a zoonotic parasite with many reports of ophthalmomyiasis in human from iran and other countries. the aim of the peresent studywas the isolation and identification of excretory-secretory (es) and somatic (s) antigens of o. ovis second and third stage larvae (l2, l3) collected from arabi sheep breeds located in southwest o...