| natural antibodies to human t-cell leukemia/lymphoma virus in healthy venezuelan populations. | serum samples of 769 healthy venezuelan donors were assayed for natural antibodies to htlv-i by the elisa technique. specific htlv-i antibody prevalence was 6.8% but varied from 1% in caracas to 13.7% in the amazonas region and the state of zulia. adults infected with trypanosoma cruzi had the highest htlv-i antibody prevalence of 15%. areas of high antibody prevalence were correlated most strongly with the presence of arthropod-borne diseases and to a lesser extent with socio-economic factors. ... | 1984 | 6092282 |