Souza, L.E.B. de Cruz, J.F. da Teixeira Neto, M.R. Albuquerque, G.R. Melo, A.D.B. Tapia, D.M.T. Epidemiology of Eimeria infections in sheep raised extensively in a semiarid region of Brazil Subjects--Topical Terms: OVINOCOCCIDIOSEDOENCA ANIMALPARASITOSEINFECCAO