COVID-19 ante portas: Empirical formula, growth reactions and thermodynamic properties of biosynthesis and antigen-receptor binding of the Omicron XFG variant of SARS-CoV-2.

No one walks alone. In 2019, humanity obtained a permanent companion called SARS-CoV-2. SARS-CoV-2 lives with its human host, adapts to the human host and evolves, in a similar process to that in the human host. The XFG variant is the latest in the sequence of variants that appeared during the process of adaptation. Science has intensively followed the process of evolution of SARS-CoV-2. It was noticed that in accordance with the expectations of the evolution theory, SARS-CoV-2 variants have become less pathogenic and more infective. However, there is a great concern in the general public because of the millions of casualties during the COVID-19 pandemic. In this paper, chemical and thermodynamic characterization was performed: empirical formulas, reactions of biosynthesis, antigen-receptor binding reaction and thermodynamic properties of live matter, biosynthesis and binding were determined, mechanistic model of virus-host interactions was developed and the driving force of biological processes during the life cycle of the virus was determined.