Systematic Veterinary Virology

ERADICATION

• In herds that are free of BVD, control is aimed at appropriate quarantine to keep replacement stock away from pregnant females by adopting strict biosecurity measures.
• Control is based on sound management practices, elimination of persistently infected cattle, and vaccination.
• Cattle should be tested for persistent infection and antibody against BVDV before entry into a herd, as should embryo donor and embryo recipients.
• Cattle selected as embryo recipients or herd replacements should be vaccinated if they are negative for antibody against BVDV. Cattle that are persistently infected should be sold for slaughter.
• Bull semen may transmit BVDV and should be tested for virus before use. All breeding bulls should be blood tested and shown to be free of persistent infection because the semen of persistently infected bulls contains high levels of virus.