Symptoms of brucellosis usually appear within two weeks of
infection. Symptoms can appear from five days to several months
after infection. In the early stage, symptoms may include: -
Muscle pain - Severe headache and backache Nausea, vomiting, and
- Abdominal fullness or discomfort - Joint pain As it
progresses, brucellosis causes a severe fever (104° F to 105°
F). This fever occurs in the evening along with severe sweating.
It becomes normal or near normal in the morning, and usually
begins again at night. This on and off fever usually lasts 1 to
5 weeks. After 5 weeks, symptoms usually improve or disappear
for two days to two weeks. Then the fever recurs. In some
patients, this fever returns only once. In others, the disease
becomes chronic, and the fever returns, lessens, and then recurs
again over months or years. In later stages, brucellosis can
cause: - Loss of appetite - Weight loss - Abdominal pain - Joint
pain Patients usually recover within 2 to 5 weeks. Rarely,
complications can develop. These may