Ongoing BVD control schemes aim to: (i) prevent the introduction of BVD virus (including live or inactivated vaccines) in free herds; (ii) remove PI animals from infected herds; (iii) monitor BVD status over time. Eradication programmes in the EU have been applied variously at national, regional and herd level.
Management strategies in the EU1Essentials for a successful BVD management strategy:
Removal of PI animals before vaccination
Vaccination of cattle must induce broad and log-lasting immunity
Vaccination of female cattle must confer foetal protection and must be safe during pregnancy
Promotion of safe trade
Surveillance
Current vaccination options in the EU1
*use during pregnancy should only be on a case-by-case basis decided by the responsible veterinarian
L2D (Life-double-deleted) is a special version of modified live vaccines that combines efficacy of a modified live BVD vaccines and the safety of inactivated BVD vaccines.
Eradication plans in the EU1
National/regional programmes
Scandinavian countries
Austria
The Netherlands
Germany
Scotland
Ireland
Brittany
Rome, Lecco and Como
Herd-to-herd programmes
England
France
Italy
Spain
Portugal
References
EU Thematic network on control of bovine viral diarrhoea virus (BVDV). BVDV Control QLRT – 2001-01573 Position paper.