. "D013587" . . . "-" . "097" . "Syphilis is a sexually transmitted infection caused by the spirochete bacterium Treponema pallidum subspecies pallidum. The primary route of transmission is through sexual contact; it may also be transmitted from mother to fetus during pregnancy or at birth, resulting in congenital syphilis."@en . "Syphilis"@en . "090" . "A50-A53" . .