The animals are culled as soon as possible. In Wilbertoord this concerns 1250 mother animals, in Overloon about 7500.
The infection was discovered at the first farm because the mink showed signs of disease. The company in Overloon came into the picture through early warning, the monitoring system in which animals are tested for the virus every week.
A total of 52 mink farms in the Netherlands have now been declared infected.