Vol. 6, Issue 1, Part C (2024)

At the end of 2019, symptoms of a new respiratory disease of viral origin, suspected to be a new type of influenza, were discovered in Wuhan Province in China. Global efforts and research centers around the world, in cooperation with the World Health Organization, to discover the pathogen of this disease, which has become known as an acute respiratory syndrome - Corona Virus-2 (SARS-CoV-2), where the Coronavirus 2 was discovered responsible for these symptoms, given the rapid increase in the number of infections and its transformation into a global pandemic, and several deaths were recorded around the world. The world has imposed a global quarantine to limit the spread of the disease, and clinical research has begun to obtain treatment or vaccine that prevents the disease or reduces the severity of its spread. Among the first vaccines that appeared were the Oxford - AstraZeneca vaccine with the viral vector technology and Sinopharma with the weakened and inactivated virus technology; the world has witnessed a new promising technology in vaccines mRNA technology by Pfizer and other vaccines; in conclusion, the vaccine increases the body's ability to resist the Coronavirus and prevents the risk of complications, disease, and death.