布氏菌病常由于同染疫动物直接接触而传染,但是,由于饮用未经消毒的污染奶制品也能引起布氏菌病的传染。人与人之间的接触也可能是一种传播的方式,但实际上很少发生。虽然在美国发生家族性布氏菌病是少见的,但是,在其它国家象印度、英国、法国已有一些病例的介绍。下面是在加利福尼亚居住的一个共有7口人的家庭中有5人发生布氏菌病的报告。 Brucellosis is often transmitted as a result of direct contact with the infected animals, but brucellosis can also be caused by the consumption of unsterile, contaminated dairy products. Contact between people may also be a way of spreading, but in fact rarely happen. Although familial brucellosis is uncommon in the United States, there are a few cases that have been introduced in other countries like India, the United Kingdom and France. The following is a report of 5 outbreaks of brucellosis in a family of 7 in California.