Acta Bioethica is a biannual journal published by the Bioethics Unit of the Pan American Health Organization (PAHO), Information and Management Knowledge area. Since 2000 this journal replaced Cuadernos de Bioética of the Bioethics Regional Program at PAHO. The journal presents pluralists perspectives on bioethics issues and constitutes an important platform for contributions of qualified authors compromised with an interdisciplinary vision of conditions and ethical consequences of scientific technology in research.