ID#: 28117
Caption:
This photographic montage of 12 images highlights the results of a leptospiral macroscopic slide agglutination test, demonstrating both negative and positive reactions. Agglutination is recorded as positive (+) when definite clumping occurs, doubtful (±) when only slight clumping is observed, and negative (-) when the serum-antigen mixture remains evenly suspended. See PHIL 26294 for additional examples of positive versus negative results.
High Resolution: Click here for hi-resolution image (18.35 MB)
Content Provider(s): CDC/ Mildred M. Galton, Sc.M.
Creation Date: 1958
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Copyright Restrictions: Permission is not required for public domain images, however, these images are provided by CDC and are available for personal, professional, and educational use with appropriate attribution. Redistribution must credit CDC and, where known, the individual photographer, and identify the CDC website as the free source. For additional terms see Use of Agency Materials | Other | CDC