Exploring the landscape of orphan and rare diseases

Global health care is getting closer to reality by the efforts of numerous national government and non-governmental organisations, as well as international organisations like the World Health Organisation (WHO) and the United Nations Children's Fund. The major global health challenges were to develop the strategies for treating orphan and rare disease. The terms "orphan diseases" and "rare diseases" are often used interchangeably, but they have slightly different connotations. “Rare diseases" refer to those medical conditions which affect