Gastrointestinal parasites of domestic sheep from Patagonia throughout historical times: A paleoparasitological approach.

Sheep husbandry in Patagonia, Argentina, started at the beginning of the 20th century from European settlers. Sanitary management is minimal, which has serious implications for the sheep health. Sheep can be infested by diverse parasites, with well over 150 species of internal and external parasites reported worldwide.