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A decade in the future, humanity thrives in the absence of sickness and disease.

We owe our good health to a humble parasite – a genetically engineered tapeworm developed by the pioneering SymboGen Corporation. When implanted, the tapeworm protects us from illness, boosts our immune system – even secretes designer drugs. It’s been successful beyond the scientists’ wildest dreams. Now, years on, almost every human being has a SymboGen tapeworm living within them.

But these parasites are getting restless. They want their own lives . . . and will do anything to get them.

Reviews

A creepy spine-tingler of a medical thriller
Charles Stross
Parasite is believable, disturbing and only the beginning . . . The disturbingly realistic plot, coupled with interspersed events of hostility from the infected, make for a suspense ridden read
SciFiNow
Existing in a unique space somewhere between medical thriller, psychological science fiction and body horror, Parasite is a properly chilling read
THE ELOQUENT PAGE
Interesting, morally ambiguous characters and some genuinely unexpected plot developments . . lives up to its intriguing premise
THE LIST
An incredible, disturbingly plausible tale of what happens to a world where medical treatments have minds of their own
i09.com
A riveting near-future medical thriller that reads like the genetically-engineered love child of Robin Cook and Michael Crichton
John Joseph Adams
The most readable, wittily written - and even charming zombie thriller in years
MORNING STAR
Parasite is a thoroughly enjoyable nightmare
SUNDAY SPORT