Syphilis: Sexually transmitted disease caused by the spirochete Treponema pallidum.
梅毒: 由苍白密螺旋体(Treponemapallidum)引起引起的一种性传染病.
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The primary intermediate hosts for this spirochete are deer ticks belonging to the genus Ixodes.
这种螺旋菌的最初中间宿主是鹿身上的属于一种硬虱的扁虱.
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