The college of dentistry at the University of Baghdad held a scientific symposium entitled (Coronavirus Omicron Variant) that was presided over by the Assist. lecturer Ferial Mahmoud Abdul Rhida who talked about this new variant of Coronavirus divided into five sub-mutants of the same fifth mutant and that all share with each other qualities and differ in other qualities but they are able to spread worldwide since they are more contagious than the other four mutants of the Coronavirus. The symptoms are lighter than the previous variants, including cough, fatigue, cold, fatigue and nose runoff, while we can reduce infection by taking vaccines.