The Van Rooi plant in the southern Netherlands was closed on health grounds after 16% of a sample of 130 workers tested positive.
"The test results show that there is a risk that the company can become a hotspot to spread the coronavirus within a short timespan," the regional security authority said in a statement.
The plant will be closed until at least June 2. Over 30,000 people work in the Dutch meatpacking and slaughterhouse industry. (AP) AMS AMS