Syphilis is an infectious sexually transmitted disease. The pathogen in question is a bacterium of the family Spirochetes, named Treponema pallidum. This disease is very contagious.
The contamination is made directly, from an infected individual to another individual, by contact
vein (ie, sexually) in 95% of cases. Surprisingly, syphilis can be transmitted by transfusion or even congenitally (that is, from a pregnant woman to her fetus). All types of unprotected sexual behavior are implicated in syphilis contamination.
The time between infection and the onset of the disease is three weeks. As for contagiousness, it can last up to a year if syphilis is not treated. It is concentrated in the chancre (ulceration unique in the genitals or the mouth depending on the place of contamination) and cutaneous ulcerations characteristic of secondary syphilis.
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