A survey of Q-fever in Sweden.

Coxiella burnetii, the etiological agent of Q-fever has recently been isolated from sheep in southern Sweden. In this region 24-30% of sheep farmers have been exposed to the organism as shown by serological measurements. In veterinarians, another group with high risk of exposure to C. burnetii, about 12% have antibodies to the bacteria. The seropositive veterinarians are scattered all over the country. In two non-risk groups, draftees and hospital employees, 5-7% were found to be positive. This survey showed that Q-fever is a domestic disease which is spread throughout Sweden.