Virology, Nebraska Center for
Date of this Version
March 1973
Abstract
A comparison of the direct agglutination test and the indirect hemagglutination test for the detection of blood serum antibodies to Escherichia coli organisms indicated that these serological tests were comparable. In some instances the indirect hemagglutination test provided higher endpoint readings. Preparation of the antigens for the indirect hemagglutination test was more time consuming than for the direct agglutination test. Crude extract and purified polysaccharides were comparable as red blood cell sensitizing agents.
Comments
Published in APPLIED MICROBIOLOGY, Mar. 1973, p. 458-460, Vol. 25, No. 3. Copyright © 1973 American Society for Microbiology. Used by permission.