Differences and Similarities between Coronaviruses: A Comparative Review

Today, humans fight powerful and active viruses that never take hold and do not know defeat, named coronaviruses. These viruses have start in 2002 and continued to grow and have changed their chains dramatically until now. They are known for having many similar features in common, and there are also structural differences between them. The most important reason that has turned coronaviruses into a pandemic is that this disease is easily transmitted by droplets near infected people, which leads to the spread of this virus faster worldwide. The more details known about coronaviruses that have profoundly affected humanity in the past and present and the diseases they cause, the more benefit in help designing an immune response or preventive vaccine to these viruses in the near future. In this article, coronaviruses, how they have been started and spread, and what differences and similarities are between them will be briefly covered here. The information of this investigation is taken from articles and the world health organization and are reviewed here. The goal is to document this information for future reference.