After the number of variants of coronavirus, the COVID booster shot is required to avoid any health issues. I have searched many things at various places about the CORONAVIRUS and I found that it is changing its shape and right now it is having 49 different variants all around the world. COVID delta variant makes a huge issue in the whole world and people are facing critical issues because of this variant and the number of deaths are also increased. A booster dose is available in many countries including the USA, the UK, and many others. Now, Omicron is a new variant of Coronavirus, which is spreading with double intensity all around the world. Thus, every person should register them for vaccination to reduce the rate of spreading COVID-19. Besides, there are many good causes in which people have immunized themselves. Therefore, a COVID booster shot is required to reduce the impacts of different variants of coronavirus.