Subsequent epidemics have not been attended by anything like this mortality, but there has, however, been a steady decrease, principally among young children, owing to whooping-cough, tuberculosis and croup. Every Fijian child seems to contract yaws at some time in its life, a mistaken notion existing on the part of the parents that it strengthens the child's physique.
This organism belongs to a family of infectious agents which cause yaws and pinta as well as syphilis.
Bejel is related to yaws and pinta, and together the three diseases are referred to as treponematoses.
Yaws, which also affects the skin and bones, occurs in the humid equatorial countries, while pinta, which only affects the skin, is common among the native peoples of Mexico, Central America, and South America.