A study published in PLOS Neglected Tropical Diseases, by Mirdad Kazanji, of the Centre International de Recherches Medicales de Franceville in Gabon, and the Institut Pasteur de la Guyane in French Guiana, suggests that 30 years after the first epidemiological survey of the seroprevalence of Human T-cell lymphotropic virus type 1 (HTLV-1) infections in Gabon, the country remains highly endemic, with a seroprevalence of 7.3%.
HTLV-1 infections affect approximately 5 to 10 million people globally and can cause adult T-cell lymphoma, myelopathy, and a variety of other diseases. Thirty years ago, researchers conducted an epidemiological study in Gabon, revealing an HTLV-1 infection prevalence of 5%-10.5%. To evaluate current disease distribution, the authors collected blood samples, medical histories, and sociodemographic data from 4,381 participants, aged 15-90 years old, living across all 9 provinces of Gabon over a three-year period. Of the 4,381 people tested, 320 were positive for HTLV-1, contributing to 7.3% prevalence country-wide. Additionally, the authors measured for geographic distribution, behavioral and sociodemographic risk factors that may contribute to disease transmission.
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