[Sero-epidemiological survey of arbovirus diseases in the Bi-Aka pygmies of Lobaye, Central African Republic].

Sero-epidemiological survey for Arboviruses among Bi-Aka Pigmies of the Lobaye, Central African Empire. A sero-epidemiological survey has been conducted, in 1975-1976, among 349 nomadic Pygmies of the Lobaye area in the Central African Empire, to investigate the prevalence of arbovirus infections. The percentages of individuals with detectable antibodies were 9,5 % for Chikungunya, 13,5 % for Semliki Forest, 5,2 % for Sindbis; 11,7 % for Bunyamwera; 2,3 % for West Nile, 6,3 % for Uganda S, and 8,9 % for Yellow Fever.

[Treponemal serology in a Bi-Aka pygmy population of Central Africa].

A serologic survey on 196 blood samples (20% of the present population) in a Bi-Aka pygmean population in Central African Republic. The survey demonstrated the frequency of the unquestionably positive sera: 79.4% of the studied sera.