Part I: Epidemiology and Transmission 1. Serological and Molecular Methods to Study Epidemiological Aspects of Human T-Cell Lymphotropic Virus Type 1 Infection Olivier Cassar and Antoine Gessain 2. Molecular Epidemiology Database for Sequence Management and Data Mining Thessika Hiala Almeida Ara?jo, Filipe Ferreira de Almeida Rego, and Luiz Carlos Junior Alcantara 3. Reporter Systems...