Diagnosis of Epidemic Encephalitis by Complement-fixation Tests

The Diagnosis Of Glanders By Complement Fixation

Complement Fixation Tests in Pertussis.

Bordet and Gengou (1), in 1906, performed serological tests on pertussis employing the organisms which they discovered and claimed to be the causative agent of whooping cough as the antigen for the complement fixation test. They got a positive reaction in most cases of the disease. Yet, later investigations failed to confirm these results. Among those who confirmed their results were Renaux (2)...

Complement Fixation Tests in Poliomyelitis **

Infection with poliomyelitis virus gives rise to complement-fixing (C-F) antibodies which may be detected with antigens prepared either from the brains of infected mice or tissue culture fluids, as shown with Type II by Casals et al."' and with all three types by Svedmyr et al.' These workers used sufficient antigen in each test to obtain maximum sensitivity. With this antigen concentration the...

Value of the concomitant use of complement fixation and immunodiffusion tests in the diagnosis of coccidioidomycosis.

Complement fixation titers of 1:2 and 1:4 with coccidioidin are not always of diagnostic significance. The concurrent use of the complement fixation and immunodiffusion tests is an effective means for specific serologic diagnosis of coccidioidomycosis in patients with low levels of complement-fixing antibodies. In routine testing, it is recommended that only sera that are negative for complemen...

Comparison of immunodiffusion and complement fixation tests in the diagnosis of histoplasmosis.

The immunodiffusion and complement fixation tests for histoplasmosis were compared on 2,090 initial sera from 70 proven cases of histoplasmosis, 177 routine chest hospital patients, and 1,843 coal miners from outside the major endemic area for histoplasmosis. The complement fixation test using histoplasmin as antigen detected antibodies in the sera of 72.8% of the 70 proven cases, while the com...