Coxiella burnetii phase I antigen for diagnosing Q-fever by CFT

The antigen is used for the detection of antibodies against Coxiella burnetii in the blood serum samples of humans and animals by the complement fixation (CF) test. It is especially applied for the detection of elevated levels of the Coxiella burnetii phase I antibodies. Thus, it is particularly useful for both confirmation and therapeutic follow-up of the chronic Q fever in humans.