Warthin-Starry stain is used to demonstrate which organism?

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Multiple Choice

Warthin-Starry stain is used to demonstrate which organism?

Warthin-Starry is a silver-based stain used to highlight slender, delicate bacteria in tissue, rendering them dark against a light background. In gastric biopsies, Helicobacter pylori are tiny curved bacteria that cling to the gastric epithelium; this stain deposits silver on them, making them easily visible under the microscope and helping confirm infection. The other organisms listed are typically identified by different methods: Streptococcus pyogenes is seen as Gram-positive cocci with Gram stain, Escherichia coli as Gram-negative rods, and Candida albicans as a fungus detected best with fungal stains like PAS or GMS. Warthin-Starry is most useful for detecting Helicobacter pylori, which is why it’s the best choice.

Warthin-Starry is a silver-based stain used to highlight slender, delicate bacteria in tissue, rendering them dark against a light background. In gastric biopsies, Helicobacter pylori are tiny curved bacteria that cling to the gastric epithelium; this stain deposits silver on them, making them easily visible under the microscope and helping confirm infection. The other organisms listed are typically identified by different methods: Streptococcus pyogenes is seen as Gram-positive cocci with Gram stain, Escherichia coli as Gram-negative rods, and Candida albicans as a fungus detected best with fungal stains like PAS or GMS. Warthin-Starry is most useful for detecting Helicobacter pylori, which is why it’s the best choice.

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