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陕西省榆林地区绥德等南六县，五十年代人、畜间布病广为流行，危害严重，经过30年艰苦防制，于1989年达到布病控制区标准。1994年冬季以来，绥德县薛家河乡高家沟林部分母羊发生流产，从1995年正月起人群中出现发热、乏力，关节疼痛，睾丸肿大的患者．且病例日渐增多，这些患?
In the six counties such as Suide in Yulin Prefecture of Shaanxi Province in the 1950s, widespread brucellosis was widespread and seriously endangered. After 30 years of hard control, it reached the standard of control of brucellosis in 1989. Since the winter of 1994, some ewes of Gaojiagou Forest in Xuejiahe Township, Suide County have aborted. From the first lunar month of 1995, fever, fatigue, joint pain and testicular swelling appear in the crowd. And the increasing number of cases, these patients?