Epidemiology is the study and analysis of the distribution patterns and determinants of health and disease conditions in defined populations. It is a foundation of general wellbeing, and shapes approach choices and proof-based practice by distinguishing hazard factors for ailment and focuses for preventive medicinal services. Disease transmission specialists help with study plan, assortment, and measurable examination of information, correct understanding and spread of results. The study of disease transmission has created approach utilized in clinical research, general wellbeing considers, and, to a lesser degree, fundamental research in the organic sciences. The study of disease transmission is the technique used to discover the reasons for wellbeing results and maladies in populaces. In the study of disease transmission, the patient is the network and people are seen all in all. By definition, the study of disease transmission is the investigation of the dispersion and determinants of wellbeing related states and occasions in indicated populaces. It is likewise the utilization of this investigation to the control of medical issues.