**Abstract**

Chlamydiosis is a disease that can be seen in different forms in the animals. In the genus *Chlamydia*, two species have been reported in the studies. The first is *C. trachomatis*, which is responsible for infections in humans and *C. psittaci*, which has a wide host distribution, including many animals and humans. *C. psittaci* is usually transmitted from poultry to humans. Along with causing flu-like conditions in humans, it has also caused abortions in pregnant women by contact with sheep and goats that have been infected and have offspring. The likelihood of pregnant women contracting the *Chlamydia* pathogen through contact with sheep and goats increases the zoonotic importance of the disease. There are few reports documenting antibiotic resistance in Chlamydiae. Furthermore, there are no examples of natural or permanent antibiotic resistance in strains that cause disease in humans. In some strains, the detected antibiotic resistance cannot be identified in vitro, which hinders the recognition and interpretation of antibiotic resistance.

**Keywords:** chlamydias, zoonoz, ovine enzootic abortion, psittacosis, antibiotic resistance
