There were nine and three quarter billion people on the planet when the third nuclear bomb ever used in warfare was detonated.
There were a slightly different nine and three quarter billion people on the planet when the fourth through twenty-seventh warfare bombs were detonated.
There were seven and a third billion people when twenty-eight set off the automated launch of twenty-nine through one thousand and eight.
There were two billion people left when the last nuclear bomb was found and destroyed.
Thus, those two billion got to die a much longer, painful death when the Virus began to spread…