NORMAL guinea pig serum is the most common source of complement for the complement-fixation test, and may be used fresh or, more commonly, preserved either by freeze-drying or by Richardson's method 1 ...
A study of Shigella flexneri antigens by means of hemagglutination, bacterial agglutination, and complement-fixation tests yielded the following results. 1. The antigens of Sh. flexneri can be ...
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