Bliss (drug)

Bliss was an addictive mood drug sold on the planet New Earth. After Bliss became extremely popular and was regularly taken, a virus which killed the drug's users eventually mutated inside the compound and became airbourne. In 5,000,000,029, the virus killed the majority of the human (or humanoid) population of New Earth within seven minutes flat, save Novice Hame and the Face of Boe, and the inhabitants of the undercity of New New York and the Motorway after they were sealed. With no hosts to feed on, the virus iteslf eventually perished. (TV: Gridlock)