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Medicina (Buenos Aires)

versión On-line ISSN 1669-9106


MALAN, Richard et al. Seroprevalence of HTLV-1/2 in blood donors from Misiones Province. Medicina (B. Aires) [online]. 2010, vol.70, n.1, pp.71-74. ISSN 1669-9106.

Human T-cell Lymphotropic viruses type 1 (HTLV-1), the first human oncoretrovirus to be discovered, is the etiologic agent of Adult T-cell Leukemia (ATL) and HTLV-1 Associated Mielopathy or Tropical Spastic Paraparesis (HAM/TSP). It is endemic worldwide, including the North of Argentina where both associated diseases have also been detected. No etiologic role has been described for HTLV-2, although it has been associated with HAM/TSP-like neurologic syndromes. Both retroviruses are endemic in native populations of The Americas, Africa and at-risk populations. They are transmitted through sex contact, parenterally and from mother to child. The aim of this study was to estimate the seroprevalence of HTLV-1/2 in a blood donor population from Misiones province. A total of 6912 accepted blood donations in 2008 were analyzed. HTLV-1/2 screening was performed with ELISA and particle agglutination, and reactive samples were confirmed by Western Blot. From the total, 5 samples resulted seropositive with a final prevalence of 0.00072. Out of the 5 positive samples, one was an HTLV, three HTLV-1 and one HTLV-2. These blood donors were residents of Posadas, Eldorado and Oberá, with no risk antecedents. This study demonstrates the presence of HTLV-1/2 in a population of Misiones with a prevalence rate similar to those reported among blood donors from non-endemic areas.

Palabras clave : Blood donors; Misiones; HTLV-1/2.

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