
Congo Red is used to stain amyloid within tissues. The stain can be used to see the presence of amyloidosis. It can also be used to stain bacteria- specifically virulent serotype 2a Shigella flexneri. Thicker sections (8-10 microns) should be used for staining.
Results: Amyloid deposits will stain a salmon colour or bright red, while background tissue will remain light pink, nuclei will stain blue.

Faculty of Medicine and Health Sciences
Research lab focused on advancing scientific knowledge and innovation.
Congo Red is used to stain amyloid within tissues. The stain can be used to see the presence of amyloidosis. It can also be used to stain bacteria- specifically virulent serotype 2a Shigella flexneri. Thicker sections (8-10 microns) should be used for staining.
Results: Amyloid deposits will stain a salmon colour or bright red, while background tissue will remain light pink, nuclei will stain blue.


Faculty of Medicine and Health Sciences
Research lab focused on advancing scientific knowledge and innovation.
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