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IDEXX Leukosis Milk Screening Ab test

Enzootic Bovine Leukosis (EBL)/Bovine Leukemia Virus (BLV)

IDEXX Leukosis Milk Screening is IDEXX’s enzyme immunoassay for the detection of antibodies directed against Enzootic Bovine Leukosis Virus (BLV) in bovine bulk tank milk. The test is based on the use of an ultrapurified virus lysate. It is standardized to detect the OIE standard serum E05 1/25,000 (100 milk samples in the pool) according to Council Directive 88/406/EEC and OIE description (chapter 2.4.11) and the ANSES equivalent serum LBE1.

* Availability / Distribution: Outside the U.S. 


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Test details


  • Producer can conveniently screen the herd for exposure to the Bovine Leukemia Virus by measuring antibodies in the bulk tank milk

Part numbers and sizes

P02210-10 (10 plates/strip)

About Enzootic Bovine Leukosis (EBL)/Bovine Leukemia Virus (BLV)

Bovine leukemia virus (BLV) is a retrovirus that may cause lymphosarcoma in cattle. The virus resides in blood lymphocytes where circulating antibodies are unable to neutralize it. Therefore, once an animal is infected with BLV, it is infected for life.

BLV is economically significant to the producer because of premature culling or death as a result of lymphosarcoma. Another concern is the condemnation of carcasses at slaughter, which has a significant economic impact on the dairy and cattle industries. Losses from export restrictions are another economic concern of BLV infection. Countries that have bovine leukosis control programs require BLV-free certification prior to shipping cattle to their regions. Moreover, exporters of semen are under increasing pressure to ensure that their product is from a BLV-free animal in a BLV-free herd.

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