[Serological study of chlamydial abortion in sheep].

A vast serologic study of the chlamydial abortion in sheep was carried out. The complement-fixation test was employed to investigate a total of 3808 ewes--both animals that had miscarried and various groups of controls. The results obtained were processed statistically. Forty-four new foci of chlamydial abortion in sheep were discovered. It was shown that the serologic diagnosis of the disease was possible with the study of serum samples from animals with abortions, taken once and twice. The artificial infection of pregnant ewes led to a chlamydial infection having and individual clinical development and characteristic antibody dynamic. Comprehensive seroepizoologic investigations on all farms with abortions are suggested for the overall elucidation of the nosologic geography of the disease.