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→Control
=Control=
=Control=
Testing and culling using the AGID test and PCR for young calves is effective, but not economically viable in high prevalence herds.
In these circumstances, prevention of transmission between animals by direct contact with blood is the key focus. Some countries and states have mandatory management and monitoring practices in place which must be obeyed.
Feeding young calves milk from seronegative dams can prevent further transmission ov BLV, although in high prevalence herds, frozen colostrums from infected dams has been used in order to provide passive immunity to the virus, while reducing lymphocyte infectivity. Note that these calves will then have a positive AGID result and therefore may be refused for export.
No vaccine is currently available for BVL/EBL.
As the role of insect vectors is poorly understood, control of these is prudent as part of a control plan.
=References=
=References=
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