They culled the herd in England.
In the US, only the US govt (per my last experience) may test for vCJD (the Mad Cow Prion) in cows, even if you are a drug manufacturer. There are, of course, kits on the market to test for the Mad Cow prion.
https://www.fda.gov/biologicsbloodvaccines/safetyavailability/ucm111482.htm
Of course, lots of deer wasting disease in PA...https://kywnewsradio.radio.com/articles/news/deer-24-states-including-pennsylvania-infected-chronic-wasting-disease ...is this a prion disease?
Yes, CWD is a prion disease.
They did, indeed, cull the herd in England. And I wonder how many cattle farmers were ruined. Was this a DS attempt to destroy Great Britain’s economy?