Encuesta serológica de virus transmitidos por artrópodos / Serological survey for arthopod-borne virus

ABSTRACT

This report deals with the results of a serological survey performed at the "Colonia Penal Agrícola de Araracuara", Colombia, during March, 1966. A total of 396 sera, from persons never vaccinated before against yellow fever, was studied; 262 of them were brought to the area when older than fourteen years of age, and 134 were Indians, natives from that region who had never left it and who live a nomadic existence collecting natural rubber