What should you know about brucellosis symptoms in cows?

In cattle, infection may be suspected when there are abortions, weak newborn calves, infertility, or reduced breeding performance. Some infected animals show few obvious signs, so appearance alone cannot confirm or exclude infection. The bacteria can be present in tissues and fluids linked with calving or abortion, creating an exposure risk for people who handle them.

Human brucellosis can begin with non-specific illness. A person may develop fever, night sweats, muscle aches, joint pain, marked tiredness or loss of appetite after contact with infected cattle, birth materials, or unpasteurised animal products. These symptoms are not proof of brucellosis, and a healthcare professional may need to arrange a blood test.

Avoid handling suspected birth products or animal tissues with bare hands. Keep children and other people away from contaminated areas, use suitable protective clothing, and follow local veterinary or public-health instructions for animal testing and disposal. Do not consume unpasteurised milk or dairy products from an animal or herd under investigation.

Tell a clinician exactly when the exposure occurred, what material was involved, whether protection was used, and whether you have fever, sweats or aches. Testing and treatment decisions are individual. If brucellosis is diagnosed, prescribed antibiotic treatment must be taken exactly as directed.

Contact a healthcare professional promptly after a significant exposure, especially if fever, night sweats, joint pain or muscle aches appear. Seek urgent help for confusion, severe weakness, breathing difficulty, fainting, or inability to keep fluids down. Tell the service that animal exposure is possible so the assessment can account for brucellosis.

Ask whether your exposure warrants a blood test, which symptoms should trigger reassessment, and how to avoid exposing household members. You can also ask how prescribed antibiotic treatment should be taken and when follow-up is needed.