Chlamydophila pecorum is a species of Chlamydiaceae

Chlamydiaceae

Chlamydiaceae is a family of bacteria that belongs to the Phylum Chlamydiae, Order Chlamydiales. All Chlamydiaceae species are Gram-negative and express the family-specific lipopolysaccharide epitope αKdo--αKdo--αKdo . Chlamydiaceae ribosomal RNA genes all have at least 90% DNA sequence identity...

 that has been isolated only from mammals: cattle, sheep and goats (ruminants), koalas (marsupials), and swine. C. pecorum strains are serologically and pathogenically diverse.

In the koala, C. pecorum causes reproductive disease, infertility

Infertility

Infertility primarily refers to the biological inability of a person to contribute to conception. Infertility may also refer to the state of a woman who is unable to carry a pregnancy to full term...

, and urinary tract disease. In other animals, C. pecorum has been associated with abortion

Abortion

Abortion is defined as the termination of pregnancy by the removal or expulsion from the uterus of a fetus or embryo prior to viability. An abortion can occur spontaneously, in which case it is usually called a miscarriage, or it can be purposely induced...

, conjunctivitis

Conjunctivitis

Conjunctivitis refers to inflammation of the conjunctiva...

, encephalomyelitis

Encephalomyelitis

Encephalomyelitis is a general term for inflammation of the brain and spinal cord, describing a number of disorders:* Acute disseminated encephalomyelitis or postinfectious encephalomyelitis, a demyelinating disease of the brain and spinal cord, possibly triggered by vaccination or viral...

, enteritis

Enteritis

In medicine, enteritis, from Greek words enteron and suffix -itis , refers to inflammation of the small intestine. It is most commonly caused by the ingestion of substances contaminated with pathogenic microorganisms. Symptoms include abdominal pain, cramping, diarrhea, dehydration and fever...

, pneumonia

Pneumonia

Pneumonia is an inflammatory condition of the lung—especially affecting the microscopic air sacs —associated with fever, chest symptoms, and a lack of air space on a chest X-ray. Pneumonia is typically caused by an infection but there are a number of other causes...

, and polyarthritis

Polyarthritis

Polyarthritis is any type of arthritis which involves 5 or more joints simultaneously. It is usually associated with autoimmune conditions.Polyarthritis may be experienced at any age and is not gender specific.-Causes:...

.