Nietfeld J C
Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA.
Vet Clin North Am Food Anim Pract. 2001 Jul;17(2):301-14, vi. doi: 10.1016/s0749-0720(15)30030-x.
Chlamydophila abortus (formerly Chlamydia psittaci) is one of the most important causes of reproductive failure in sheep and goats, especially in intensively managed flocks. The disease is usually manifested as abortion in the last 2 to 3 weeks of gestation, regardless of when the animal was infected. Ewes that abort are resistant to future reproductive failure due to C. abortus, but they become inapparent carriers and persistently shed the organism from their reproductive tracts during estrus. Chlamydophila pecorum is the other member of the genus that affects small ruminants, and it is recognized as a primary cause of keratoconjunctivitis in sheep and goats and of polyarthritis in sheep.
流产嗜衣原体（原称鹦鹉热衣原体）是绵羊和山羊繁殖失败的最重要原因之一，尤其是在集约化管理的羊群中。该病通常表现为妊娠最后2至3周流产，无论动物何时感染。流产的母羊对未来因流产嗜衣原体导致的繁殖失败具有抵抗力，但它们会成为隐性携带者，并在发情期从生殖道持续排出该病原体。猪嗜衣原体是该属中另一个感染小型反刍动物的成员，它被认为是绵羊和山羊角膜结膜炎以及绵羊多关节炎的主要病因。
