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Treponema pallidum pallidum is a motile spirochete that is generally acquired by close sexual contact, entering the host via breaches in squamous or columnar epithelium. The organism can also be transmitted to a fetus by transplacental passage during the later stages of pregnancy, giving rise to congenital syphilis. [ 54 ]
Histopathology of Treponema pallidum bacteria using a modified Steiner silver stain, 1986 Treponema pallidum subspecies pallidum is a spiral-shaped, Gram-negative , highly mobile bacterium. [ 11 ] [ 22 ] Two other human diseases are caused by related Treponema pallidum subspecies, yaws (subspecies pertenue ) and bejel (subspecies endemicum ...
Treponema is a genus of spiral-shaped bacteria. The major treponeme species of human pathogens is Treponema pallidum, whose subspecies are responsible for diseases such as syphilis, bejel, and yaws. Treponema carateum is the cause of pinta. [2] Treponema paraluiscuniculi is associated with syphilis in rabbits. [3]
Treponema pallidum is the spirochete-shaped bacteria that causes neurosyphilis. The pathogenesis is not fully known, in part due to fact that the organism is not easily cultured, making scientific experiments difficult. [22] Within days to weeks after initial infection, T. pallidum spreads throughout the body via blood and lymphatic vessels.
Bejel, or endemic syphilis, is a chronic skin and tissue disease caused by infection by the endemicum subspecies of the spirochete Treponema pallidum.Bejel is one of the "endemic treponematoses" (endemic infections caused by spiral-shaped bacteria called treponemes), a group that also includes yaws and pinta.
The genetic analysis of the yaws causative bacteria—Treponema pallidum pertenue—has led to the conclusion that yaws is the most ancient of the four known Treponema diseases. All other Treponema pallidum subspecies probably evolved from Treponema pallidum pertenue.
Thin spirochete Treponema pallidum bacteria, the causative agent of syphilis magnified 400 times. A spirochete (plural spirochetes) is a very thin, elongate, flexible, spiral bacteria that is motile via internal periplasmic flagella inside the outer membrane. [33] They comprise the phylum Spirochaetes.
Syphilis is a sexually transmitted infection that is brought upon by the gram negative bacteria, Treponema pallidum. Treponema pallidum are various spiral shaped motile bacteria of the family spirochaetaceae. [8] Their genus features include spirochetes, which means that they are spiral with axial filaments (endoflagellum). These bacteria are ...