Shope papilloma virus, sometimes referred to as cottontail cutaneous papilloma virus, is a viral disease that causes malignant tumors to grow in rabbits, often on its head. The virus is seen in wild rabbits, as well as domestic or pet rabbits.
Outbreaks of the disease more commonly seen during the summer and fall, when populations of disease-carrying insects are highest. Keeping rabbits indoors during these seasons is recommended.
A member of the Papovaviridae family, this virus is frequently seen in cottontail rabbits, but may be contagious for other breeds. A rabbit suffering from Shope papilloma virus will have raised, red and rough lesions (usually circular), which are greater than one centimeter in length. These lesions are found in various locations on the upper half of the animal's body, including the neck and shoulders, but are primarily found on the eyelids, ears and other areas of the head. (They are occasionally seen on a rabbit's feet.)
This type of papilloma virus is often spread by biting insects known as arthropods, more specifically mosquitoes and ticks.
To diagnose the disease, the nodules will have to be removed. A biopsy will then be performed to confirm the malignancy of the cancer.
A fleshy, lobed growth of the skin
Something that becomes worse or life threatening as it spreads
The process of removing tissue to examine it, usually for medical reasons.