 Already in 2015, scientists expressed concern that the Wuhan Institute of Virology was conducting research that posed unacceptably high risk. At a 2015 Royal Society and National Academies meeting on gain-of-function research and its oversight, the research on bat SARS viruses by the Wuhan Institute of Virology and its collaborators was singled out as the research most likely of all research in the world to trigger a pandemic.