Changes

*No known treatment to reverse persistent infection or to cure mucosal disease

*No known treatment to reverse persistent infection or to cure mucosal disease

*BUT, without exposure to BVDV, the whole herd is at risk as there is no developed immunity

*BUT, without exposure to BVDV, the whole herd is at risk as there is no developed immunity

*Vaccination of dams before pregnancy will prevent PI calves being born

*'''Vaccination of dams''' before pregnancy will prevent PI calves being born

**'''Beta-propiolactone inactivated''' vaccine

**'''Beta-propiolactone inactivated''' vaccine

**Combine with screening for antigen and removal of PI animals

**Combine with screening for antigen and removal of PI animals