الفهرس 
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Abstract
The aim of this study was to describe the epidemiological aspects of brucellosis in Egyptian patients in terms of sociodemographic features and risk factors.
To fulfill such purpose, we studied 69 patients with brucllosis.These patients were taken from Banha fever hospital during the period from January 2013 to August 2013. Sixty nine patients were accurately diagnosed by ELIZA, as we use it for the confirmation of human brucellosis. All patients were subjected to detailed history taking, clinical examination and laboratory investigations including CBC, ESR. Urine analysis, liver and kidney function tests, Slide agglutination test, ELIZA, abdominal ultrasound and bone X-ray if needed.
The results of the current study showed that brucellosis commonly occurs during 2nd and 3rd decades, there was no difference in gender, house wives were more common in the studied cases and all patients were from rural areas.
As regard socioeconomic variables, there was an association between having animals and brucellosis. Most of studied patients were having a fridge, all were having television and proper water supply, and however there was no sanitary sewage disposal system.
All patients were presented with fever (100%). The pattern of fever was undulant. The most presenting symptoms beside fever were headache (63%), low back pain (56%), body ache (55%), malaise (55%) and artheralgia (51%).
The most commonly encountered GIT symptoms among the studied brucellosis patients were nausea, vomiting and diarrhea and the most commonly encountered chest symptom was cough, while dysuria was the most common urinary symptom.
The most significant abdominal signs were abdominal tenderness, 17.4% of patients had hepatomegaly and 11.6% had splenomegaly by abdominal examination.
We found that the positive predictive value of slide agglutination test was 76.7%.
As regard the risk factors, we found that the most important risk factor was consuming raw milk, consumption of unprocessed cottage cheese and milking animal and the patients had contact with animals mostly cattle and goat 74% but dogs were rare.