I believe that epidemiology is the powerful root that supports continuous advancement in medicine. Epidemiology is the foundation of medical research and is a mandatory component of medical education and practice. Epidemiology and biostatistics are two complementary disciplines forming together a single rubric and there is no advantage in looking at them as different  specialties. Many health practitioners don�t realize the importance of the epidemiologic principles and concepts. Thus, there is a special obligation to ensure that all health practitioners understand and apply the bases of epidemiology in their fields.