Catalog Products

Warthin-Starry Stain Kit

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Catalog No. Packaging Size Price Quantity
25093-250 250 ml
25093-500 500 ml


Identifies Spirochetes and other bacteria such as H. pylori and two causative agents of cat scratch disease, Bartonella henselae and Afipia felis. Warthin-Starry Stain relies on the ability of certain bacteria to bind silver ions from solution. Subsequent addition of a reducing agent then converts this bound silver to visible metallic silver. In the Warthin-Starry stain, tissue is sensitized prior to application of the silver complex. An aqueous silver nitrate solution combined with the reducing agent hydroquinone is applied and a silver diamine complex is generated.

Kit Contains:

  • 1.5ml - 2% silver nitrate
  • 3.75ml - 5% gelatin
  • 2ml -  0.15% hydroqinone


  • Bacteria-black
  • Background-yellow to light bown