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a common venereal disease caused by the treponema pallidum spirochete; symptoms change through progressive stages; can be congenital (transmitted through the placenta)
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the first stage; characterized by a chancre at the site of infection
the second stage; characterized by eruptions of the skin and mucous membrane
the third stage; characterized by involvement of internal organs especially the brain and spinal cord as well as the heart and liver
syphilis of the central nervous system
syphilis of the spinal cord characterized by degeneration of sensory neurons and stabbing pains in the trunk and legs and unsteady gait and incontinence and impotence
sexually transmitted disease
a communicable infection transmitted by sexual intercourse or genital contact
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