In Holland ultimo 2020 84 percent of the dairy farms was free or unsuspected of Bovine Virus Diarrhoea (BVD). In 2018, at the start of the eradicating program for BVD and IBR (Infectious Bovine Rhinotracheitis) this was 71 percent for each. Ultimo 2020 was 77 percent of the dairy farms free or unsuspected of IBR.