A novel pattern of treponemal antibody distribution in isolated South American Indian populations.

Autor: Lee, R V, Black, F L, Hierholzer, W J, West, B L
Zdroj: American Journal of Epidemiology; January 1978, Vol. 107 Issue: 1 p46-53, 8p
Abstrakt: Serologic surveys for treponemal disease were carried out in 1970-1976 among three linguistically distinct and isolated population groups in the Brazilian Amazon Region and among the Mapuche Indians of southern Chile. Three patterns were found: 1) no evidence for treponemal infection in two very recently contacted groups; 2) sporadic positive individuals in groups with long periods of contact with non-Indian populations; and 3) a high prevalence of positive tests in one cultural group with limited exposure to non-Indians. The seroepidemiology and clinical manifestations of a possible treponemal infection in those villages with a high prevalence of positive tests were unlike those of the classically described human treponematoses.
Databáze: Supplemental Index