CONTROL OF BOVINE VIRAL DIARRHEA VIRUS-INFECTION WITHOUT VACCINES

Experiences with control and eradication of bovine viral diarrhea viru s (BVDV) in large geographic areas have only been attained in the Scan dinavian countries including Finland. in Scandinavia, the occurrence o f BVDV varies greatly from a very low prevalence in Finland to a very high prevalence in Denmark. The control programs, and the eradication program in Denmark, are described and discussed. Particular emphasis i s given to herd tests that can be used to indicate the infection statu s of herds and also for surveillance purposes. In Denmark, where the a nnual losses resulting, from BVDV have been calculated to be approxima tely 100 million Dkr ($17 million US), the total costs connected with the control and eradication have been estimated to be approximately 16 0 million Dkr or $27 million US.