Final answer:
The virus in the book Illuminae is fictional, while the real acanthamoeba polyphaga mimivirus, discovered in amoeba, can cause pneumonia in humans and contains mostly genes with some 'junk' DNA.
Step-by-step explanation:
In the book Illuminae, the virus referred to is a fictional and lethal pathogen, not the real-life acanthamoeba polyphaga mimivirus. The mimivirus is the largest known virus discovered within an amoeba in 1992 and was identified as a virus in 2003. This virus is so large that it was initially mistaken for a bacterium.
Although the mimivirus can cause pneumonia in humans, it is not directly connected to the fictional events of the book Illuminae. The mimivirus contains a core of DNA, mostly comprised of genes, but also includes about 10% 'junk' DNA, which is DNA of unknown function.