A case of bovine spongiform encephalopathy (BSE), also known as 'mad cow disease', has been detected in a cow in the Netherlands. The infected animal did not enter the food chain and did not pose a food safety risk. The farm where the animal was located has been isolated, and any offspring and animals bred with the cow or fed the same feed will be tested and slaughtered. The disease is reportedly of an unusual variety, possibly atypical BSE, which occurs sporadically in older cows.