The complement fixation test is like a Wassermann reaction, but the antigen should be polyvalent.
The Committee made inquiries from competent witnesses as to the present position of the complement fixation test in gonorrhœa.
At a later period, however, the complement fixation test is almost invariably positive.
The complement fixation tests were all performed in duplicate as a check on any possible errors in technique.
complement fixation n.
The binding of active complement to a specific antigen-antibody pair used in diagnostic tests, such as the Wasserman test, to detect the presence of a specific antigen or antibody.