Rare Diseases & Orphan Drug

Orphan diseases and public health

An orphan disease is a rare disease (according to US criteria, a disease that affects fewer disregards (such as cholera, typhoid, tuberculosis, and malaria) because it is far more prevalent in developing countries than in the developed world. Public health practitioners use a combination of disciplines that include basic science, epidemiology, behavioural research, clinical research, health care services, statistics, economics, and policy to identify the primary or secondary causes of health threats and then consistently prevent or decrease these causes in entire populations.