A contagious skin disease prevalent in tropical America, caused by a spirochete (Treponema carateum) and marked by extreme thickening and spotty discoloration of the skin.
Una malaltia contagiosa de la pell prevalent a l'Amèrica tropical, causada per una spirochete (Treponema carateum) i marcat per extrem engrossiment i irregular, decoloració de la pell.