I've thought this as well. They way I see it is they didn't have enough of the death shots to do what they wanted before they had to rush them out. So they made the best of it (for them of course) and decided that they would put some full-strength vaccines out in the red areas to do maximum damage against the patriots they wanted gone first. Then they used the rest and mixed it with saline - hoping that the small amount of poison in the shots would take effect over a few years while still damaging fertility. Think cancer, AIDS, and heart disease.

They don't mind waiting a few more years to kill everyone and create the NWO. They did not want to miss the opportunity to take out at least part of the people they wanted to kill.