The ELISA or EIA test. A. The direct or double antibody–sandwich method for the detection of antigens. B. The indirect assay for detecting antibodies.

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The ELISA or EIA test. A. The direct or double antibody–sandwich method for the detection of antigens. B. The indirect assay for detecting antibodies. (Reproduced with permission from Willey JM: Prescott, Harley, & Klein's Microbiology, 7th edition. McGraw-Hill, 2008.) Source: Principles of Laboratory Diagnosis of Infectious Diseases, Sherris Medical Microbiology, 6e Citation: Ryan KJ, Ray C. Sherris Medical Microbiology, 6e; 2014 Available at: https://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/Books/1020/rya_ch4_f013.png&sec=56986835&BookID=1020&ChapterSecID=56968646&imagename= Accessed: November 05, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved

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