[Immunodiffusion studies of the complete somatic antigens of Paramphistomum sp. and Fasciola hepatica].

Investigations were carried out through the agar gel immunodiffusion test of complete somatic antigens of Paramphistomum sp. and Fasciola hepatica, using the respective homologic and heterologic hyperimmune rabbit sera. Differences were established in the spectrum and number of the produced precipitation lines - 6 to Paramphistomum and 4 to Fasciola. With the identity test by the scheme in three after Zilber and Abelev (1962) no precipitation arcs were formed against the heterologic hyperimmune rabbit sera. This pointed the fact that there was no antigenic relation between the helminth species studies.