Relief as county winsall-clear.
Seven farms were originally given the all-clear, but farmers had an anxious wait for results from an eighth farm.
The first outbreak of the disease in England for a decade was recorded at Landare Farm in Duloe, near Liskeard, in Cornwall, a fortnight ago.
All movement restrictions on cattle in Cornwall have now been lifted, although Landare Farm will have to wait until 60 days after the outbreak before restocking.
A spokesman for the Department for Food, Environment and Rural Affairs said the news was 'a great relief to everyone involved'.
He added, 'We are still trying to trace the source of the outbreak.
'There is still quite a lot of work going on trying to track down all the animals imported into Devon and Cornwall.'
Brucellosis, which is caused by infection with the bacterium brucella abortus, causes cattle to abort and can cause a disease in humans known as undulant fever.