The Squirming — Jack Hamlyn

You are their hosts You are their food. The parasites came out of nowhere, squirming horrors that enslaved the human race.They turned the population into mindless pack animals, psychotic cannibalistic hordes whose only purpose was to feed them. Now with the human race teetering at the edge of extinction, extermination teams are fighting back, killing off the parasites and their voracious hosts. Taking them out one by one in violent, bloody encounters. The future of mankind is at stake. And time is running out.