Bejel (also known as endemic syphilis or treponematosis) is a chronic, non-venereal treponemal infection caused by Treponema pallidum subsp. endemicum. It primarily affects children and adolescents in arid and semi-arid regions, especially parts of the Middle East, North Africa, Sahel region of Africa, and some parts of Central Asia. The disease spreads through direct skin-to-skin contact or...