EXPERIMENTAL-INFECTION OF LYMNAEA-COLUMEL LA, PHYSA-CUBENSIS AND PHYSA-MARMORATA WITH CATTLE FASCIOLA-HEPATICA-MIRACIDIA FROM CURITIBA URBAN AREA AND PARANA EAST-COAST, BRAZIL

L. columella, P. cubensis and P. marmorata from Curitiba urban area an d laboratory raised were experimentally infected with Fasciola hepatic a miracidia from Bos taurus from Sao Jose dos Pinais and Bocaiuva do S ul counties from Bubalus bubalis from Morretes and Guaraquecaba, all i n the East Region of Parana State (endemic areas for animal fasciolosi s). Only the snails sacrificed with 5,7,10,15,30,40, and 55 days of in fection (with 139 samples of L. columella, 117o P. cubensis and 199 of P. marmorata) were considered for the results. Only L. columella was found with evolutive forms of F. hepatica, comprising.