Looked through up on mad cow. It took a full year before actions were taken in 1985 and they were not finished until five years later in 1989.
“A few days before Christmas 1984, vet David Bee was called to Stent Farm in Sussex to examine a sick cow with strange symptoms – its back was arched and it had lost weight.
Within six weeks, cow 133 was dead, having developed head tremors and a loss of coordination. Seven months later, the UK Central Veterinary Laboratory diagnosed spongiform encephalopathy. By this time, other cows were also showing symptoms. The epidemic had begun.
Four herds had been affected when the Central Veterinary Office alerted the Ministry of Agriculture, Fisheries and Food (MAFF) in June 1987.
Nearly a year later, the government set up a working party chaired by Oxford University professor of zoology, Richard Southwood, to investigate bovine spongiform encephalopathy (BSE) and any implications for human health.
Shortly after this, the government banned the feeding of cattle with protein derived from other cattle and sheep. Epidemiological studies done by MAFF scientists had pinpointed this cannibalism as being the only plausible cause of BSE. By this time it was known that BSE was a prion disease but whether the infective prion came from scrapie-infected sheep or another source is still not known.
The Southwood committee reported in February 1989, recommending a ban on the use of bovine offal in baby foods. The British government went further, and in November 1989, banned the use of specified bovine offals (SBO) in all human food.
In October of the previous year, BSE was shown to be transferable to mice, through a brain-to-brain injection of infected material. But, making assumptions based on past experience with scrapie, the Southwood committee decided that it was unlikely that BSE could be passed to humans. However, the report added: “If our assessments of these likelihoods are incorrect, the implications would be extremely serious.”
Read more: www.newscientist.com/article/dn91-bse-disaster-the-history/#