“The public health danger posed by potentially pandemic-causing viruses escaping from laboratories has become the subject of considerable discussion, spurred by ‘gain of function’ experiments. The ostensible goal of these experiments—in which researchers manipulate already-dangerous pathogens to create or increase communicability among humans—is to develop tools to monitor the natural emergence of pandemic strains. Opponents, however, warn in a variety of recent research papers that the risk of laboratory escape of these high-consequence pathogens far outweighs any potential advance.”
Source:How dangerous viruses could escape from laboratories.