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Caprine Arthritis Encephalitis (CAEV)/Maedi-Visna (MVV)

The IDEXX CAEV/MVV Total Ab Test is an enzyme-linked immunosorbent assay (ELISA) for the detection of antibodies against Caprine Arthritis Encephalitis virus (CAEV) and Maedi-Visna virus (MVV) in serum and plasma samples of goat and sheep.

  • Runs on multiple sample types: serum and plasma, for a simple streamlined process
  • Promotes efficiencies with modern kit format: easy to use, with ready-for-use reagents
  • Provides test results within 3 hours
  • Allows high sample throughput: adapted to automation for cost and time savings
  • Offers easy data management when used with xChek® and xChekPlus® software

* Availability / Distribution: Outside the U.S. 


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Test details


  • Serum and plasma
  • Ready-to-use reagents (caprine, ovine)

Part numbers and sizes

99-41199 (10 plates/strips)

About Caprine Arthritis Encephalitis (CAEV)/Maedi-Visna (MVV)

Maedi-visna virus (MVV) infection of sheep is characterized by slowly progressive arthritis, pneumonia, mastitis and encephalomyelitis. The causative agent of the disease is a virus classified as lentivirus, a subgroup of retroviruses. MVV infection is found all over the world.

This classification also includes caprine arthritis encephalitis virus (CAEV), which manifests itself in adult goats mainly in the form of severe arthritis of the carpal joint ("big knee").

Animals with CAEV become emaciated despite an intact appetite, and show poor milk yield. Serologic surveys show that CAEV is widely disseminated in goat herds on different continents.

By far, the most important source of infection, however, is the milk of positive animals. In fact, if the kids are fed with communal milk from the herd, all the kids can be infected by just a single positive goat. An effective vaccination does not exist. For this reason, eradication programs are based on colostrum deprivation, separation and serological detection of infected animals.

Specific antibodies in serum for both diseases can be measured by the same ELISA.


* Not all products are available and/or registered in every country.