[Fenbendazole therapy of experimental larval echinococcosis. 3. The antibody titer in the indirect immunofluorescent test (author's transl)].

Echinococcus multilocularis-infected NMRI-mice treated with Fenbendazole show a lower antibody titer in the immuno-fluorescence test than the untreated controls. Between animals, which were infected with different parasite strains, also differences in the antibody titer are to be seen. The same applies to animals, which were dissected at different times p.i. as well: With increasing duration of the infection it was observed a higher titer. The mentioned differences are chiefly due to the close positive correlation between worm burden, gamma-globuline content of the serum and antibody titer.