“…However, the mechanisms of the pathogenicity of T. vaginalis and T. foetus have not yet been well defined. The pathogenicity of isolates of T. vaginalis and T. foetus have been previously reported, using mouse inoculation (Schnitzer et al 1950, Bogovsky & Teras 1958, Honigberg 1961, Reardon et al 1961, Frost & Honigberg 1962, Gobert et al 1971, Dohnalová & Kulda 1975, growth characteristics (Kulda & Honigberg 1969, Kulda et al 1970, Winston 1974, and also cytopathic effect assay (Brasseur & Savel 1982, Alderete & Pearlman 1984, Rasmussen et al 1986, Roussel et al 1991. Various systems have been developed to determine the hemolytic activity of T. vaginalis (Grys & Hernik 1973, 1974, Krieger et al 1983, De Carli et al 1989, Dailey et al 1990, Potamianos et al 1992, however, up to the present, the hemolytic activity of T. foetus has not been studied.…”