2. Syphilis : Tertiary syphilis
Untreated syphilis progresses to a third or tertiary stage in about 35–40% of patients. Patients with tertiary syphilis cannot infect others with the disease. It is thought that the symptoms of this stage are a delayed...
Healthline.com (OMS Preferred Provider)

3. What is Syphilis - primary?
Syphilis is an infectious disease caused by the corkscrew-shaped bacterium (spirochete), Treponema pallidum. This type of bacteria causes infection when it gets into broken skin or mucus membranes, usually of the genitals. It is most often transmi...
MedHelp Q&A

4. Syphilis: MedlinePlus
Syphilis is a sexually transmitted disease caused by bacteria. It infects the genital area, lips, mouth, or anus of both men and women. You usually get syphilis from sexual contact with someone who has it. It can also pass from mother to baby duri...
MedlinePlus (Offsite)

5. Syphilis, Congenital
Congenital syphilis is a chronic infectious disease caused by a spirochete (treponema pallidum) acquired by the fetus in the uterus before birth. Symptoms of this disease may not become apparent until several weeks or months after birth and, in so...
Healthline.com (OMS Preferred Provider)

6. Syphilis Elimination
This web site provides information on the US Syphilis Elimination Effort as well as access to key epidemiological data, health communication resources and quick links to syphilis information. 
Centers for Disease Control and Prevention

7. Syphilis - tertiary
Tertiary syphilis is a late phase of the sexually transmitted disease syphilis, caused by the spirochete Treponema pallidum.
www.uhseast.com

8. Syphilis - Tertiary Symptoms & Treatment
This article focuses on tertiary syphilis. Tertiary syphilis can follow the initial infection (primary syphilis) by 3 to 15 years.
www.christusschumpert.org

9. tertiary syphilis - NDI Foundation
A subacute to chronic infectious disease caused by the spirochete Treponema pallidum, which is usually transmitted by sexual contact or acquired in utero but can be contracted by direct contact with infected tissues and blood or contaminated fomit...
www.ndif.org

10. L: late syphilis tertiary
Manifestations of tertiary syphilis can occur after a period of latency of 20 years or more and include significant neural deterioration manifesting as tabes dorsalis and paralysis, and cardiovascular syphilis.
www.skincareguide.com