adultes (by 1 person)

adults (by 1 person)

africa (by 1 person)

afrique (by 1 person)

baka (by 1 person)

bantu (by 1 person)

bejel (by 1 person)

cameroon (by 1 person)

cameroun (by 1 person)

case-control study (by 1 person)

children (by 1 person)

cross-sectional study (by 1 person)

elisa (by 1 person)

enfants (by 1 person)

epidemiologie (by 1 person)

epidemiology (by 1 person)

etude serologique (by 1 person)

forests (by 1 person)

goundou (by 1 person)

map (by 1 person)

pertenue (by 1 person)

pian (by 1 person)

pinta (by 1 person)

prevalence (by 1 person)

risk factors (by 1 person)

risques (by 1 person)

rural (by 1 person)

serology (by 1 person)

seroprevalence (by 1 person)

syphilis (by 1 person)

t pallidum (by 1 person)

treponema pallidum (by 1 person)

yaws (by 1 person)