 However, despite informed conjecture in media sources  or reports  on HEGAA like scenarios, there have been few in a fictional context.An example of a HEGAA like scenario is a storyline in the season 10 of The X-files, with a virus engineered to contain a CRISPR system targeted to disrupt the sequence of the human adenosine deaminase gene.Gene editing of the virus is triggered in the environment as a means to destroy the human immune system in the fictional story.