Heat treating colostrum for 60 minutes to 135 oF has been shown to prevent transmission of CAEV to kids. Pasteurized kid rearing methods are the key to eliminating milk and colostrum as a route of entry for CAEV. Even with supportive care, the encephalitic form is usually fatal.ĬAEV infection and spread may be prevented by purchasing only test-negative animals or maintaining a closed herd and removing kids from infected does immediately after birth. Although there is no specific treatment for CAEV, goats may be given supportive care including pain medication and antibiotics for opportunistic bacterial infections. Approximately 35 percent of infected goats will develop arthritis as a clinical sign during their productive lifetime. Contact transmission between adult goats is considered to be rare except during lactation. Blood (e.g., contaminated instruments such as needles, dehorners, etc., and open wounds) is regarded as the second most common way of disease spread.
CAEV is primarily transmitted to kids via colostrum in the first few feedings after birth or by comingling milk from an infected doe or does and feeding it to kids. The arthritic form of the disease is most common in adult goats, while the encephalitic form is most common in kids. Farms with both sheep and goats should incorporate both species into all prevention and control programs. CAE virus may also be spread among adult goats through contact with body secretions including blood and feces of infected goats. The disease is typically spread from mother to kid through the ingestion of colostrum or milk. Cross-infection of sheep with CAEV and goats with OPPV can occur. Caprine arthritis encephalitis virus (CAEV) is a member of the small ruminant lentiviruses (also includes ovine progressive pneumonia virus, or OPPV, of sheep), which may lead to chronic disease of the joints, and on rare occasions, encephalitis in goat kids less than six months of age.
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