The University of Basrah / College of Medicine organized a scientific symposium on the new Corona virus strains, the reasons for their prevalence and their risks. The symposium aims to introduce the new strains that have recently appeared in South Africa and the United Kingdom and the extent of their potential spread to the other areas of the world. That  included a detailed explanation of the mechanism of evolution of these viruses and the emergence of new strains. It was emphasized that these strains will not interfere  with the vaccination programs at the present time, also there is no possibility o…