This book is a new exciting editorial project designed to provide high quality information about the most important world-wide diseases considering minorities groups. The information commonly is diffuse and not always highlighted. Consequently preventive, diagnostic, and treatment issues could differ from classical (most cited) information. This a classical text for those practitioners or researchers that have interest about medical troubles in the most numerous groups of patients (all minorities). In this book you will find scientific data regarding the most imperative diseases in world-wide derived from minorities groups. Taking into consideration the information of this book you may be able to analyse with critical and constructive view the standard of care in prevalent diseases. Additionally, this could be a great opportunity for researchers to identify limitations in the available information and in the future help to solve these restrictions.