Washington Post, Tue Feb 10: U.S. Ends Investigation of Mad Cow Case -- Officials Fail to Find Two-Thirds of Animals at Risk of Infection:

Federal officials ended their investigation into the country's first case of mad cow disease yesterday after failing to locate almost two-thirds of the 80 cattle that had entered the United States from Canada with an infected Holstein.

The 52 missing animals include 11 cows believed to be at higher risk because they were born about the same time as the Holstein and may have eaten the same contaminated feed. 'The paper trail has gotten cold; we have not been able to trace those animals,' said W. Ron DeHaven, chief veterinary officer at the Department of Agriculture. 'Some of them very likely have gone to slaughter,' he said.

[...]

Yesterday, DeHaven said that many of the animals' ear tags had been lost and that the chances of finding the rest of the herd was 'pretty slim at this point.'

'It's time to move on,' he said.

Move along, citizens ... go back to supporting the beef industry ... nothing more to see here...