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Am. J. Trop. Med. Hyg., 57(1), 1997, pp. 56-59
Copyright © 1997 by The American Society of Tropical Medicine and Hygiene

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Human T Cell Lymphotropic Virus Type-1—Associated Myelopathy/Tropical Spastic Paraparesis in Sao Paulo, Brazil: Association with Blood Transfusion

Renan B. Domingues, Marcelo R. Muniz, Maria Lucia G. Jorge, Matthew S. Mayo, Amadeu Saez-Alquezar, Dalton F. Chamone, Milberto Scaff AND Paulo E. Marchiori
Department of Neurology, University of Sao Paulo, School of Medicine, Sao Paulo, Brazil; Fundacao Pro-Sangue/Hemocentro de Sao Paulo, Sao Paulo, Brazil; Biostatistics Unit, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama

Human T cell lymphotropic virus type-1 (HTLV-1) associated myelopathy/tropical spastic paraparesis (HAM/TSP) has been epidemiologically linked to prior blood transfusion. The prevalence of transfusion as a risk factor for infection varies among endemic areas. Here we report the relative frequency of reported history of blood transfusion among 52 patients evaluated in Sao Paulo, Brazil. A patient reported history of blood transfusion prior to the onset of symptoms, found in 15 (28.8%) of the patients, was the most important risk factor identified in this group of patients when compared with a history of sexually transmitted diseases, homo/bisexuality, sexual promiscuity (three or more sexual partners a year), and intravenous drug use. The mean time between reported transfusions and the onset of symptoms was longer than previously reported. There was no trend toward a more severe evolution to motor inability among the HAM/TSP patients with a history of previous transfusion.




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Seroprevalence and Molecular Epidemiology of Human T-Cell Leukemia Virus Type 1 (HTLV-1) and HTLV-2 in Blood Donors from Dakar, Senegal
J. Clin. Microbiol., April 1, 2006; 44(4): 1550 - 1554.
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Copyright © 1997 by the American Society of Tropical Medicine and Hygiene.