Syphilis Causes

Syphilis is an infectious, often sexually transmitted, disease caused by the bacteria Treponema pallidum. The bacteria penetrate chafed skin or the mucous membranes.

• Transmission most often occurs when one person comes into contact with lesions on an infected person through sexual activity.

• Men are more vulnerable to contracting syphilis than women.

• The active disease is found most often among men and women aged 15-39 years.