The study of disease transmission is the investigation and examination of the circulation, examples and determinants of wellbeing and malady conditions in characterized populaces. It is a foundation of general wellbeing, and shapes strategy choices and proof based practice by recognizing hazard factors for infection and focuses for preventive social insurance. The study of disease transmission is the investigation of illnesses in populaces of people or different creatures, explicitly how, when and where they happen. Disease transmission specialists endeavor to figure out what components are related with sicknesses chance variables, and what elements may ensure individuals or creatures against illness defensive elements.