The dispersion of infections and viral contaminations over the world is alluded to as the study of disease transmission. Most epidemiologic investigations of irresistible infections have focused on the components that impact the obtaining and spread since this information is significant for creating strategies for counteractive action and control. Truly, epidemiologic investigations and the utilization of the information picked up from them and have been fundamental to the control of the extraordinary scourge ailments, similar to cholera, plague, smallpox, yellow fever, and typhus. The past 500 years have given different examples of how the establishment and advancement of by and large transport frameworks has supported overall pandemics of transmittable sickness.