Abstract
COVID-19 has a spike protein and positive –sense RNA. Virus size is about 65 to 125 nm (diameter). The spike protein length is around 20 nm which is responsible for the infection. Based on the chemical concept, the metal ions are ready to form a complex with proteins. In this view, the spike protein can form a complex with various metal ions and the infection property of spike protein is prevented. Moreover, hemoglobin has Fe3+/Fe2+, the spike protein can also interact with the Fe3+/Fe2+ and form a complex. The spike protein length is 20nm which may sufficient to insert inside the hemoglobin molecule and form a complex with Fe. Ultimately, the hemoglobin loses its oxygen transfer property with the result to human death. The other type of corona virus spike protein length may not sufficient to insert inside the hemoglobin. Hence the COVID-19 virus is a major cause for human death. In this view, to prevent the virus infection non-toxic metal ions can be used to form a complex with spike protein. These interactions make the virus death / asymptomatic and prevents further replication.