MORPHOLOGICAL MANIFESTATION OF CHLAMYDIOSIS IN INFECTED CATTLE FETUSES
The morphological structure of tissues and organs of infected cattle fetuses was studied to reveal some mechanisms of chlamydiosis pathogenesis. The research work was carried out on farm animals of the LLC «Russ», Perm region. The abortion fetuses of cattle and dead-born animals were the objects of the study. It is shown that the chlamydia infection in fetuses is accompanied with the development of intrauterine hypotrophy which is indicative of the phetoplacentary barrier damage. The typical pathoanatomical character is formation of diffused edema localized in tissues and body cavities. The histological studies showed changes of a generally pathological character, being developed at the vascular level, alternative processes, immunopathological responses and systemic inflammatory changes of the hematoencephalic and hematoneuronal barriers.