This 27 May 2020 South Korean TV video about the Netherlands says about itself:
The country’s agriculture minister said Tuesday that mink carrying the virus were found on four of the 155 farms in the Netherlands. …
The source of infection has been shown to be a sick human.
Translated from Dutch NOS radio today:
At yet another three mink breeding businesses in North Brabant province, the coronavirus has been diagnosed in several animals, report Minister De Jonge of Health and Minister Schouten of Agriculture.
The infestations came to light through mandatory screening, which is currently being conducted on all mink farms. A fourth company in Venray has a possible contamination. Further research is being conducted there.
Since the end of April, infected minks have been found at six mink businesses with eight locations. These are companies in the municipalities of Gemert-Bakel, Laarbeek, Deurne, Sint Anthonis.