Distribution and Incidence

According to one historian of treponemal diseases, pinta may have had a considerable world distribution at the end of the Paleolithic period, some 10,000 years ago. However, its past geographic distribution is in some doubt, and an alternative view suggests that it may have evolved purely in Amerindian communities of the New World, as a final level of micro-

evolutionary change in the treponematoses there. Because it is not a very destructive condition, and may remain untreated in many individuals of the Third World countries of Latin America, it has been estimated that as many as a million individuals may have the disease.

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