The Collaborative International Dictionary of English v.0.48:

Verrugas \Ver*ru"gas\, n. [Sp., warts. Cf. Verruca.] (Med.)
   An endemic disease occurring in the Andes in Peru,
   characterized by warty tumors which ulcerate and bleed. It is
   probably due to a special bacillus, and is often fatal.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Yaws \Yaws\, n. [African yaw a raspberry.] (Med.)
   A disease, occurring in the Antilles and in Africa,
   characterized by yellowish or reddish tumors, of a contagious
   character, which, in shape and appearance, often resemble
   currants, strawberries, or raspberries. There are several
   varieties of this disease, variously known as framboesia,
   pian, verrugas, and crab-yaws.
   [1913 Webster]