Special Stain: Acid-Fast

Todayโ€™s special stain is ๐š๐œ๐ข๐-๐Ÿ๐š๐ฌ๐ญ ๐ฌ๐ญ๐š๐ข๐ง!

๐–๐ก๐š๐ญ ๐ข๐ฌ ๐š๐ง ๐š๐œ๐ข๐-๐Ÿ๐š๐ฌ๐ญ ๐ฌ๐ญ๐š๐ข๐ง?
Acid-fast staining is a special technique used to identify certain types of bacteria that do not stain with Gram stain. These bacteria include ๐Œ๐ฒ๐œ๐จ๐›๐š๐œ๐ญ๐ž๐ซ๐ข๐ฎ๐ฆ, the genus that causes pretty serious diseases like tuberculosis and leprosy. This makes acid-fast staining a very important member of our special stain library! The stain highlights these bacteria in bright pink, so they stand out against the blue background.ย 

This image is a case of ๐Ÿ๐ž๐ฅ๐ข๐ง๐ž ๐ฅ๐ž๐ฉ๐ซ๐จ๐ฌ๐ฒ, which is caused by ๐Œ๐ฒ๐œ๐จ๐›๐š๐œ๐ญ๐ž๐ซ๐ข๐ฎ๐ฆ ๐ฅ๐ž๐ฉ๐ซ๐š๐ž๐ฆ๐ฎ๐ซ๐ข๐ฎ๐ฆ. This disease causes large nodules in the skin of cats.

Photo ยฉ Noahโ€™s Arkive contributor Grandi licensed under CC BY-SA 4.0.

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