Yaws in the Americas, 1950-1975.

A study of yaws among pygmies in Cameroon and Zaire.

In a survey of 333 pygmies in the Cameroon 4.5 percent. were found to have clinical evidence of yaws. This was also found in 10 per cent. of the inhabitants of camps in Zaire. The results of VDRL and FTA-ABS tests on a sample of the population are presented. These provide evidence of a very high incidence of treponemal disease, 80 to 90 percent. of the population showing serological evidence of...

Mortality in the Americas 1950-1990.

Comparative studies on the histo-pathology of syphilis, yaws, and pinta.

The mass campaigns against treponemal diseases in various countries undertaken by the United Nations World Health Organization (WHO) .and the United Nations International Children's Emergency Fund (UNICEF) together with the respective national governments have again focused interest on the epidemiology, mode of transmission and infection, clinical manifestations, and control and treatment, of t...

Evolutionary cycle of the treponematoses.

The term "treponematoses" includes yaws, pinta, and endemic and venereal syphilis under their many different local names throughout the world. Yaws, a non-venereal contagious disease particularly of childhood, is estimated to affect many millions of persons living between the tropics of Cancer and Capricorn. The incidence of infectious yaws has been markedly reduced in recent years by the W.H.O...

Comparison of RPR 'teardrop' card test, VDRL and FTA-ABS tests results on sera from persons with suspected yaws in Columbia.

A small study comparing results of the rapid plasma reagin (RPR) teardrop card test performed in the field, with results of Venereal Disease Research Laboratory (VDRL) and fluorescent treponemal antibody absorption (FTA-ABS) tests performed in the laboratory on venous blood specimens from the same suspected yaws patients was undertaken in Columbia in July 1975. The results suggest that the RPR ...