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Introduction to Spirochetes

by Larry M. Bush, MD, Maria T. Perez, MD

The family Spirochaetales is distinguished by the helical shape of the bacteria. They are too thin to be visualized using routine microscopy but can be viewed using darkfield microscopy. There are 3 genera: Treponema, Leptospira, and Borrelia. For the spirochetal disease syphilis, see Syphilis.

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