“…In Ref. [ 10 ], structural proteins are used to discuss the relationship between severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and other kinds of virus. Also, graphical illustrations such as zig-zag curves, protein contact maps and chaos game representations for Middle East respiratory syndrome corona virus (MERS-CoV), SARS-CoV, Bat Cov RaTG13 and SARS Cov-2 structural proteins are explored.…”