Parasitic infections constitute an important group of diseases in sheep concerning the health status, welfare and productivity. On a global scale, there are considerable differences concerning the epidemiological situation with respect of the various parasite species. However, there are also numerous species, which occur on all continents and, potentially, in every country. Accordingly, the present review aims to providing an overview about the recent developments in methods and technologies for the laboratory diagnosis of parasite infections in sheep. Following in principle a systematic order the review encompasses publications addressing the diagnosis of helminthes (i.e., trematodes, cestodes and nematodes) and arthropod species. New approaches using conventional (e.g., microscopic), immunological and molecular techniques are being considered. The diagnosis of anthelmintic resistance is highlighted separately, due to its significant importance. The review ends with an outlook into the future by discussing most recent technological advances, which might become of use for the diagnosis of parasite infections in sheep in the future.
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