![]() ![]() OrganizaciĆ³n Panamericana de la Salud, p.355-356.). Zoonosis y Enfermedades Transmisibles comunes al Hombre y los Animales. Oestrus ovis is a parasite botfly that belongs to the Oestridae family of the Diptera order whose larval stages cause cavitary myiasis in the paranasal sinus of sheep, goats and other animals, including humans accidentally. Oestrus ovis sheep larval stages myiasis botfly Therefore, the disease should be considered as a significant problem for this kind of livestock production. The high risk of infection seems to be dependent upon the environmental conditions of this southern region, especially during summer when the first larval stage (L1) could be found as the evidence. The difference of infection in females and males was not significant. From those that were infected, 85.7% (18/21) of sheep were 1 to 3 years old, constituting the stratum with the highest prevalence. The prevalence in the sampled sheep was 60.9%. The larvae were collected, and microscopically identified. From December 2009 to March 2010, a total of 87 samples were obtained by necropsy for skull inspection. ![]() Whence, the objective of this study was to approximate the epidemiological situation of O. Chile is a country of the southernmost worldwide distribution of this parasite, and there is few information about. Oestrus ovis is a botfly whose larvae cause nasal myiasis, an environmental-dependent disease in small ruminants, generating acute and chronic injuries in the cranial cavities of sheep. ![]()
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