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Bahonar A. R, Holakouei Naeini K, Nadim A, Zahedi M.R., Zowghi E, Mohammad K. Brucellosis determinants in Chaharmahal and Bakhtiari Province, Iran. Payesh 2002; 1 (1) :25-32
URL: http://payeshjournal.ir/article-1-883-en.html

A hospital based. case-control study was conducted to determine the risk factors of Brucellosis and typing of  detected Brucella from blood culture  of patients in Chaharrnahal and Backtiari province in  1999. A total of I 00 cases and 101 controls were filled in the questionnaire and their blood samples were cultured in castanida. Controls were matched for sex and age with cases by frequency matching method. Biotype 1 Brucella mellitansis was detected in 34 of l00 cases. After controlling for confounder factors and interaction between these variables by using logistic regression, it was found that the history of disease (Odds Ratio= 3 .32, 95% CI= .1.03-5.23), contact with aborted fetuses of animals (Odds Ratio=3.82, 95% CI= I. 79-8. l 2) and consumption of at least one unpasteurized dairy product (Odds Ratio=2.96, 95% CI=1.36-6.58) are associated with Brucellosis. In addition, in 34 cases with positive cultures, occupational coritact with animals, has been considered as a risk factor (Odds Ratio= 2.65, 95% CI= 1.15-6.1). Since in Chaharrnahal and Bakhtiari province people add unpasteurized cream to buttermilk in traditional method, butter is associated with Brucellosis (Odds Ratio= 2.79, 95% CI= 1.56-5.01).