Studies on the Prevalence of Brucellosis in Domesticated Animals During 2008 to 2009 at Mazandaran Province, Iran

Brucellosis is one of the common zoonotic diseases in human and domesticated animal which is caused by different species of the Gram negative brucella bacteria. This disease leads to repeated abortions and decline in milk production in domesticated animals. Also, because of probable infection of human societies, it has social and economic importance. During this study which was conducted from April 2008 to August 2009 on native and industrial cows and also sheep of Mazandaran province, 1863 cows including 679 (36.44%) industrial and 1184(63.56%) native and 1469 sheep were examined. Blood was taken from caudal vein of cows and jugular vein of sheep. After arrival of samples to laboratoiy sera were separated. Then samples were examined by screening test of Rosebangal and on positive samples Raight and 2ME tests were done. From the total 1863 examined cows, 94(5.04%)) were positive including 22 (23.4%) industrial and 72(76.6%)) native cows. Also. From 1469 sheep studied 358(24.37%)) were infected with this agent. In conclusion, these findings showed broad contamination of domesticated animals which could be of great importance regarding hygiene of human societies.