Primary syphilis, latent syphilis

Condition analysis:
A stage of syphilis infection in which no clinical symptoms appear, although serologic tests indicate the presence of the syphilis spirochete. Latent syphilis occurs in two phases following secondary syphilis. The early phase occurs within 1 year of infection, and the late phase occurs after 1 year of infection. Late latent syphilis is noninfectious. Latency can persist for 3 to 30 years and may or may not progress to tertiary syphilis

Instructions:
Primary Syphilis: The first symptom of primary syphilis is an ulcer called a chancre ("shan-ker"). The chancre can appear within 10 days to 3 months after exposure, but it generally appears within 2 to 6 weeks. Because the chancre may be painless and may occur inside the body, the infected person might not notice it. It usually is found on the part of the body exposed to the infected partner’s ulcer, such as the penis, vulva, or vagina. A chancre also can develop on the cervix, tongue, lips, or other parts of the body. The chancre disappears within a few weeks whether or not a person is treated. If not treated during the primary stage, about one-third of people will go on to the chronic stages.