Prevalence of HTLV-I antibody among two distinct ethnic groups inhabiting the Amazon region of Brazil

Authors

  • C.M. Nakauchi Fundação Nacional de Saúde; Instituto Evandro Chagas
  • Koshi Maruyama Chiba Cancer Research Institute
  • L.I. Kanzaki Universidade Federal do Pará; Depto. de Patologia; Laboratório de Virologia
  • A.C. Linhares Fundação Nacional de Saúde; Instituto Evandro Chagas
  • V.N. Azevedo Universidade Federal do Pará; Depto. de Patologia; Laboratório de Virologia
  • T. Fukushima Chiba Cancer Research Institute
  • M. Miyauchi Chiba Cancer Research Institute
  • N. Koshikawa Chiba Cancer Research Institute
  • C. Tamayama Chiba Cancer Research Institute
  • S. Mochizuki Chiba Cancer Research Institute
  • K. Kawamura Chiba Cancer Research Institute

Keywords:

Human T-lymphotropic virus type I (HTLV-I), Amazonian Indians, Amerindians, Japanese Immigrants

Abstract

HTLV-I seroprevalences of 3.63% (02/55), 12.19% (10/82) and 13.88% (10/72) were demonstrated among Tiryio, Mekranoiti and Xicrin Amazonian Indians, respectively, by the Western blotting enzyme assay (WBEI). By indirect immuno electron microscopy (IIEM), 2 Tiriyo, 9 Mekranoiti and 6 Xicrin Amerindians were reactive. Of 44 serum samples from Japanese immigrants, none reacted by any of the techniques before mentioned. One, 8 and 6 serum samples from Tiryio, Mekranoiti and Xicrin Indians, respectively, were both WBEI and IIEM positive. Our results strongly suggest that HTLV-I and/or an HTLV-I antigenic variant circulate (s) among populations living in the Amazon region of Brazil.

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Published

1992-08-01

Issue

Vol. 34 No. 4 (1992)

Section

Epidemiology

How to Cite

Nakauchi, C., Maruyama, K., Kanzaki, L., Linhares, A., Azevedo, V., Fukushima, T., Miyauchi, M., Koshikawa, N., Tamayama, C., Mochizuki, S., & Kawamura, K. (1992). Prevalence of HTLV-I antibody among two distinct ethnic groups inhabiting the Amazon region of Brazil . Revista Do Instituto De Medicina Tropical De São Paulo, 34(4), 323-328. https://www.revistas.usp.br/rimtsp/article/view/28940