The authors of a British-Norwegian vaccine study - accepted by the Quarterly Review of Biophysics - claim that the coronavirus's spike protein contains sequences that appear to be artificially inserted. In their paper, the Norwegian scientist Birger Srensen and British oncologist Angus Dalgleish claim to have identified "inserted sections placed on the SARS-CoV-2 spike surface" that explains how the virus interacts with cells in the human body. The reports authors also claim the lack of mutation in the virus since its discovery, suggests it was already fully adapted to humans. Srensen ... claimed that China and the United States have collaborated for many years on coronavirus research through "gain of function" studies, in which the pathogenicity or transmissibility of potential pandemic pathogens can be enhanced.