Official IBR eradication plan: Since 1998 until February 1999 an obligatory IBR there was an obligatory IBR eradication program. Since then the program is voluntary and it is run by the GD (Dutch Animal Health Service)
IBR herd prevalence (data from 2004):
Dairy
Beef
IBR free
31%
24%
Qualifying
15%
0%
Prevalence <10%
41%
66%
Prevalence >10%
13.7%
10%
IBR-free certification:
There are currently two ways to achieve IBR-free certification:
Individual blood sampling: Blood samples are collected from all animals older then 1 year and they are tested for the presence of gE antibodies. A farm is certified IBR-free if all animals that test gE positive are removed from the farm and the animals younger than 1 year didn't have contact with animals of other not IBR-free farm.
Bulk milk testing: During a period of 2 years bulk milk testing for the presence of gE antibodies is carried out at least 9 times a year. If the samples are negative during all this time then only animals older then 6 years and animals bought from farm that are not certified IBR-free are individually tested. If all gE positive animals are removed from the farm then the farm is certified IBR-free.
Vaccination: Only IBR marker vaccines are allowed (live and inactivated).
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