Abstract
Man and animals contract the disease by inhalation of air-borne rickettsiae from infected livestock. The disease can become widespread. Bovine infections are increasing. Cattle in new areas are found to be infected. Wisconsin has a high rate of animal infection, and human infections occur. Ohio, Pennsylvania, New Jersey, Louisiana, Mississippi, North Carolina, Virginia, Arizona and Nebraska are experiencing Q fever infections. By using the capillary-tube agglutination test, rapid accumulation of needed data can be had.