in calves, otitis media and various other diseases likely including late-term abortion. Not all infected cows get sick - some shed the disease without becoming ill, allowing for transmission between farms if apparently healthy cows are moved.

Signs and symptoms

Mastitis

Mastitis can occur in dairy cows of any age. The most common clinical symptoms include udder swelling and abnormal appearance of the milk, with reports ranging from watery and flaky milk to thick purulent inflammatory fluid. Mastitis can cause a decline

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