RHINOVIRUS ANTIBODIES IN AN ISOLATED AMAZON INDIAN TRIBE

In early 1985, the Parakana-Apiterewa, a small, primitive Indian tribe , was contacted in the southern Amazon Basin. The tribe was thought to have been totally isolated from civilization until recent development of their land. Blood specimens were collected in 1985, shortly after the discovery of the tribe, and analyzed for the presence of rhinoviru s-neutralizing antibody to nine different immunotypes. Six to forty-se ven percent of the serum samples tested contained antibody to at least one immunotype of rhinovirus. The prevalence of rhinovirus antibody i n the Parakana-Apiterewa Indians was similar to that reported in Unite d States populations, suggesting that there had been considerable dire ct or indirect contact in the past between tribe members and persons i n the outside world.