Lethal cattle disease (7)

I believe the answer is:

anthrax

(Other definitions for anthrax that I've seen before include "Highly infectious disease of cattle and sheep" , "could ruin stock market" , "Highly infectious, sometimes deadly, disease of cattle" , "Deadly disease of sheep or cattle that can affect humans" , "Disease of herbivores" .)

I've seen this clue in the Sydney Morning Herald.

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