Internal Bacterial Infections ----------------------------- Internal bacterial infections from a host of bacterial organisms are common among rabbits. Affected rabbits show a wide variety of signs because multiple organs (liver, kidney, intestinal tract, brain, etc.) are usually involved. Laboratory workups (blood, urine, bacterial cultures) are vital to properly diagnose and monitor the progress of these cases. Laboratory tests also help predict the outcome. Rabbits suffering from these serious multiple organ bacterial infections (septicemias) must be aggressively treated with appropriate antibiotics and proper supportive care (nutrition, fluids, etc.). Recovery usually requires several weeks or more of treatment. If infection results in formation of internal abscesses, a cure may be virtually impossible. VENEREAL SPIROCHETOSIS (Rabbit Syphilis): Rabbit syphilis is a relatively rare sexually transmitted (venereal) disease of pet rabbits. This disease is caused by a slender, spiral bacterium (spirochete) transmitted by direct contact between infected and uninfected rabbits. Transmission is more likely to occur in rabbitries than in a household. In fact, exchange of bucks (breeding males) among rabbit breeders helps spread the disease. Infected rabbits develop multiple raised, crusted and sometimes bleeding ulcers on the external genitalia, around the anus, and on the face (particularly the nose). Affected rabbits remain alert, and the condition usually disappears after several weeks. Treatment is recommended and involves antibiotic injections.