Journal Article Serological evidence for the geographical distribution of Trypanosoma vivax in the New World Get access E.A. Wells, E.A. Wells Centro Internacional de Agricultura Tropical, Apartado Aéreo 67-13, Cali, Colombia, U.S.A. Search for other works by this author on: Oxford Academic PubMed Google Scholar Antonio Betancourt, Antonio Betancourt Instituto Colombiano Agropecuario, Apartado Aéreo 206, Monteria, Colombia, U.S.A. Search for other works by this author on: Oxford Academic PubMed Google Scholar Luis Eduardo Ramirez Luis Eduardo Ramirez Facultad de Medicina, Universidad de Antioquia, Apartado Aéreo 883, Medellin, Colombia, U.S.A. Search for other works by this author on: Oxford Academic PubMed Google Scholar Transactions of The Royal Society of Tropical Medicine and Hygiene, Volume 71, Issue 5, 1977, Pages 448–449, https://doi.org/10.1016/0035-9203(77)90055-4 Published: 01 January 1977 Article history Published: 01 January 1977 Accepted: 13 June 1977