What Is Treponema Denticola?

Treponema pallidum ^[1] is the pathogen of syphilis. Because it is transparent and difficult to stain, it is also called pale spirochaete. Syphilis is a widespread sexually transmitted disease, and its incidence has risen in China. Treponema pallidum only infects humans. It is divided into acquired syphilis and fetal syphilis. Acquired syphilis is mainly transmitted through sexual contact; fetal syphilis is transmitted by Treponema pallidum from the umbilical cord blood circulation to the fetus through the placenta, which can cause fetal systemic infection. Treponema pallidum multiplies in fetal viscera and tissues and can cause fetal death or miscarriage.

Treponema pallidum is slender and pointed at both ends. The spiral is dense and regular, and the movement is lively. The surface of the bacteria body is a capsule-like substance composed of lipopolysaccharide. The structure is similar to Leptospira. Treponema pallidum must grow and reproduce in living cells. Rabbit testis or anterior chamber of the eye was inoculated or cultured with rabbit testis tissue fragments. Very weak resistance, especially sensitive to cold, heat and dry. Treponema pallidum in blood can die after being left at 4 ° C for 3 days, so there is no danger of infecting syphilis in blood refrigerated in a blood bank for more than 3 days. He died at 5 ° C for 5 minutes. Sensitive to common chemical disinfectants. Sensitive to penicillin, tetracycline, erythromycin and arsenic preparations ^[2]

Treponema pallidum is slender, 5-15 × 0.1-0.2um. It looks like a dense spring. The spiral curve is regular, with an average of 8-14. Both ends are sharp. Electron microscopy showed that Treponema pallidum has a complex structure, which is divided from outer to inner: outer membrane (mainly composed of protein, sugar and lipid), axillary filament (mainly composed of protein), and cylindrical fungus (including

Treponema pallidum

person is

Treponema pallidum contains surface

First, check the Borrelia

Taken early and

(A) first stage syphilis

The average incubation period is 3-4 weeks, and the typical damage is

The fundamental measures for prevention are to strengthen publicity and education on sexually transmitted diseases and strict social management. Patients should be diagnosed early and treated thoroughly. Penicillin is often used, but sufficient amount, duration of foot treatment and regular inspection of the dynamic changes of antibodies in the patient's serum ^[2] .