Space Pneumonia was the term given to a unique illness named by the hologram Arnold Rimmer, and which was once contracted by the human Dave Lister aboard Red Dwarf. When Rimmer said that he was going to decontaminate the old Officer's Quarters, Lister explored them before Rimmer had actually done so. Lister caught the disease whilst in there, and Rimmer hypothesized that is was a three million year-old, mutated form of pneumonia, although it is unclear if this is true.