With the rise of many variants of COVID-19, Centers for Disease control and prevention (CDC) has expressed its concern regarding progress of COVID-19 vaccination. As of now in March 2021, many countries are starting public vaccination, but the scientific society needs to keep a track of the emerging variants of COVID-19 , since the available vaccines may not protect against the new variants. CDC is a national public health institute in United states working under Department of Health and Human services, and is headquartered in Atlanta, Georgia. Its main goal is to protect public health and safety through the control and prevention of disease, injury and disability in the US and internationally. CDC has kept a track of progress of COVID-19 since the very beginning and warned the world about its various signs and symptoms. CDC has influenced and helped many countries to formulate their guidelines to tackle COVID-19 and in the past many other infective diseases. The western coun...