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Serological examination by the microagglutination (MA) and complement-fixation (CF) tests of human sera collected before and after vaccination with Q fever chemovaccine revealed a higher sensitivity of the MA test for detecting both pre-vaccination antibodies reflecting a previous exposure to Q fever and post-vaccination antibodies reflecting vaccine(More)
An immunization trial carried out on 1310 persons professionally exposed to Q fever confirmed the suitability of a chemovaccine for field use. Its immunogenicity and reactogenicity differed in three groups of subjects who differed in their previous experience of Q fever and who were given different lots of the vaccine. There was some correlation between(More)
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