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Treponema pallidum particle agglutination assay and the Toluidine red unheated serum test (TRUST), which may be used to confirm a positive VDRL result, are more specific for syphilis than non-treponemal tests and in the presence of a positive test, more likely indicate active infection.
Syphilis (/ ˈ s ɪ f ə l ɪ s /) is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum. [1] The signs and symptoms depend on the stage it presents: primary, secondary, latent or tertiary.
The fluorescent treponemal antibody absorption (FTA-ABS) test is a diagnostic test for syphilis.Using antibodies specific for the Treponema pallidum species, such tests would be assumed to be more specific than non-treponemal testing such as VDRL but have been shown repeatedly to be sensitive but not specific for the diagnosis of neurosyphilis in cerebrospinal fluid (CSF).
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.
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 ]
Treponema pallidum, a spirochate bacterium, is the main cause of syphilis, which spreads drastically throughout the body and can infect all its systems if not treated appropriately. Treponema pallidum is the main cause of the onset of meningeal syphilis and other treponemal diseases, and it consists of a cytoplasmic and outer membrane that can ...
It is caused by the bacterium Treponema pallidum subspecies pallidum when it infects the baby after crossing the placenta or from contact with a syphilitic sore at birth. [4] [5] It is not transmitted during breastfeeding unless there is an open sore on the mother's breast. [4] The unborn baby can become infected at any time during the ...
Treponematosis is a term used to individually describe any of the diseases caused by four members of the bacterial genus Treponema. The four diseases are collectively referred to as treponematoses: [1] Syphilis (Treponema pallidum pallidum) Yaws (Treponema pallidum pertenue) Bejel (Treponema pallidum endemicum) Pinta (Treponema carateum)