Animal immunization and cross absorb test demonstrated that Acinetobacter Lwoffi and strain Ox_ ( 19) of Proteus had common antigen, which indicated that infections with Acinetobacter Lwoffi may produce positive Weil-Felix reaction. 经动物免疫、交叉吸收试验证明,Lwoff不动杆菌与变形杆菌Ox19有部分共同抗原成份,表明不动杆菌感染可致外&斐氏反应阳性。