Canadian Medical Guide > Organisms > Bacteria > Gram-Negative Bacteria > Gram-Negative Anaerobic Bacteria > Gram-Negative Anaerobic Straight, Curved, and Helical Rods > Spirochaetaceae Terms and Definitions

Spirochaetaceae

Medical Definition:	A family of spiral bacteria of the order SPIROCHAETALES.
Guide Notes:	a family in the order SPIROCHAETALES; in stagnant water & in bivalve mollusks
Previously Indexed:	Bacteria (1966-1974)

Spirochaetaceae Categories.

	Borrelia - A genus of gram-negative, anaerobic, helical bacteria, various species of which produce RELAPSING FEVER in humans and other animals.
	Serpulina - A genus of spiral bacteria of the family SPIROCHAETACEAE. This genus contains two species, SERPULINA HYODYSENTERIAE and Serpulina innocens, which were formerly classified as Treponema hyodysenteriae and Treponema innocens, respectively. When researchers determined that T. hyodysenteriae and T. innocens did not belong to the genus Treponema, the new genus was named Serpula. Within a short time, however, it was discovered that Serpula was already the name of a fungal genus and thus, Serpula was changed to Serpulina.
	Spirochaeta - A genus of flexible, spiral rods found in hydrogen sulfide-containing mud, sewage, and polluted water. None of the species properly referred to in this genus are pathogenic.
	Treponema - A genus of microorganisms of the order SPIROCHAETALES, many of which are pathogenic and parasitic for man.

Spirochaetaceae Medical Definitions and Terms

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