[from the 30th Anniversary Edition - additional scenes]
Darlene Davies: So you don't think they'll find some kind of virus, or germ?
Reverend John Hicks: No. Those creatures were demons, creatures of Satan inhabiting the bodies of our dead. And the demons are still loose in this world, and the dead must be spiked.
Darlene Davies: Spiked? I don't know what you mean.
Reverend John Hicks: Spiked, as the hands of Jesus were spiked to the cross! SPIKE the dead to prevent them from rising again before Judgment Day! All sinners must repent and the dead must be spiked! Heed the Word of the Lord, or the dead will rise again possessed by demons, and ye who are unclean shall be damned forever and ever in eternal fire!