1.   But TB has been endemic in British herds for decades.

2.   Government officials say they are now confident that after the strict slaughter program, the disease has been all but eradicated from British herds.

3.   It was imposed three years ago after the outbreak of mad cow disease in British herds.

4.   The disease, which disproportionately affects British herds, is linked to an incurable, brain-wasting disease in humans.

5.   With rampant disease striking British herds for the second time in a decade, the change is accelerating.

6.   Britain has struggled unsuccessfully to eradicate BSE since the disease broke out in British herds a decade ago.

7.   Britain has struggled unsuccessfully to wipe out mad cow disease, formally known as bovine spongiform encephalopathy, since it broke out in British herds a decade ago.

8.   Britain has struggled unsuccessfully to eradicate the illness since the disease broke out in British herds a decade ago.

9.   Britain acknowledges it will take years to completely eradicate mad cow disease, a brain-wasting ailment that has plagued British herds for a decade.

10.   Britain has struggled against mad cow disease, formally known as bovine spongiform encephalopathy, since it broke out in British herds a decade ago.

a. + herd >>共 180
entire 11.05%
small 6.78%
dairy 5.23%
british 5.04%
whole 4.07%
large 3.10%
smaller 2.71%
great 2.33%
original 2.33%
wild 2.13%
british + n. >>共 891
government 5.97%
official 2.97%
colony 2.58%
troop 2.21%
soldier 2.13%
beef 2.11%
rule 1.72%
company 1.56%
newspaper 1.26%
authority 1.21%
herd 0.08%
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