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Experimental investigation of the life cycle of S. vulgaris revealed a migration of larvae to the mesenteric arteries, a period of development there, and finally migration back to the large intestine. The prepatent period is six months. The pathological effects of the infection are due to...

Duncan, J. L.; Pirie, H. M.
Helminth diseases of cattle, sheep and horses in Europe,, 1974, pp 115-126