Many have said that this shot is basically an operating system that re-programs your cells to manufacture certain proteins , most are for unknown purposes (for later use.....) . So if this were a version of Windows operating systems , consider this assault on humanity to be an injection of Windows Vista in your system.... and we all knew then as we do now, it was never intended to work like it was intended. Zombie apocalypse is now possible.... watch the movie CELL , and pray that movie was fictional, and not a documentary ..