Chris Cook's herd of Pedigree Red Ruby cattle
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Hampshire farmer Chris Cook's struggle with TB threat

Bovine tuberculosis (TB) is seen as one of the biggest threats to cattle farming, with a 170 cases in Hampshire last year.

While a cull of badgers is on hold until at least the summer, other efforts to control the spread of TB have been stepped up across the south.

For farmers such as Chris Cook that means extra costs and further challenges.