Answer: Compounds made by bonding of atoms of known elements
Explanation:
Viruses are microorganism which replicates inside the living cell of an organisms.They are made up proteins and nucleic acids which are mainly composed of amino acids. And amino acids are the compounds made up of carbon, nitrogen , oxygen and sulfur atoms.
Since, the new virus discovered by scientist must be having different arrangement or different types of proteins and nucleic acid(s) bonded together. From which we can ultimately say that matter composing the newly discovered virus are the compounds made by bonding of atoms of known elements.