CLASSICAL DISEASES RELATED TO CHLAMYDIA OR CHLAMYDOPHILA SPP. IN ANIMALS ANIMAL MODELS

摘要

Chlamydophila (C.) abortus (formerly Chlamydiapsittaci serotype 1) is an agent causing abortion in small ruminants. Enzootic abortion of ewes (ovine chlamydiosis) is listed as a notifiable disease by the World Organisation for Animal Health (OIE; Office International des Epizootics). Zoonotic infections are known to generate acute or even life-threatening situations in pregnant women who became infected with C. abortus from small ruminants. In sheep and goats, the disease is usually manifested as abortion in the last 2 to 3 weeks of gestation, regardless of when the animal was infected. Aborting ewes seem to be resistant to future reproductive failure due to C. abortus, but they become inapparent carriers and intermittently shed the organism from their reproductive tracts during estrus. C. 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.