Rabbit Syphilis (Treponematosis)

Rabbit Syphilis (Treponematosis)
Translated from EPOF Clinic article by Dr. Patcharin Sanguantonkalaya (Dr. Nan)

1. What is Rabbit Syphilis? Rabbit syphilis, also known as Treponematosis or Vent Disease, is caused by the bacterium Treponema paraluiscuniculi. It is important to note that this is a species-specific disease; it cannot be transmitted to humans or other animal species.

2. Transmission The disease is primarily spread through:

Direct Contact: Physical contact between an infected rabbit and a healthy one.
Mating: This is the most common route of transmission.
Mother to Offspring: During birth or nursing (contact with the mother’s infected lesions).
3. Symptoms and Clinical Signs Symptoms usually appear around the mucous membranes, including the genital area, anus, and face (nose, lips, and eyelids).

Initial Stage: Redness, swelling, and small blisters.
Progression: The blisters burst, forming crusty scabs, ulcers, or flaky skin.
Secondary Infection: If the rabbit scratches or grooms the affected areas, the bacteria can spread to the nose and eyes, causing crusting and irritation in those areas as well.
4. Diagnosis Vets typically diagnose rabbit syphilis through:

Physical Examination: Observing the characteristic lesions and history of the rabbit.
Skin Scraping/Biopsy: To identify the bacteria under a microscope (using dark-field microscopy).
Blood Tests: To detect antibodies against the bacteria.
5. Treatment

Antibiotics: The most effective treatment is a course of Penicillin G injections.

Warning: Penicillin must be administered by injection only. Giving oral penicillin to rabbits is extremely dangerous and can be fatal due to its impact on their digestive system.
Supportive Care: Keeping the area clean and ensuring the rabbit’s overall health and immune system are supported.
Duration: Treatment usually takes several weeks (typically 3-4 injections, once a week) until the lesions completely disappear.
6. Prevention

Quarantine: Isolate new rabbits for at least 30 days before introducing them to others.
Screening: Check rabbits for any signs of sores or crusting before breeding.
Hygiene: Maintain a clean living environment.