3.67 (15,257 ratings by Goodreads)
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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.
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Product details

  • Paperback | 512 pages
  • 130 x 196 x 40mm | 358g
  • London, United Kingdom
  • English
  • 0356501922
  • 9780356501925
  • 65,893

Review quote

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

Mira Grant lives in California, sleeps with a machete under her bed, and highly suggests you do the same. Mira Grant is the open pseudonym of Seanan McGuire, a successful fantasy writer and the winner of the 2010 John W. Campbell Award for Best New Writer.
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Rating details

15,257 ratings
3.67 out of 5 stars
5 21% (3,209)
4 39% (5,986)
3 28% (4,275)
2 9% (1,342)
1 3% (445)

Our customer reviews

(Source: I received a digital copy of this book for free on a read-to-review basis. Thanks to Orbit Books/Hachette Book Group, and Netgalley.) Twenty-something Sally was involved in a car accident 6 years ago that doctors didn't think she'd survive. When she did wake from her coma, she was unable to remember anything about her life previously, and had to relearn everything - including learning to speak English again. Now Sally goes by the name Sal, and her on-going care is provided by a company called SymboGen. SymboGen created a parasitic tapeworm that lives in the human gut, and infers health benefits. Sal had one of these tapeworms, and it was thought that it was that that had saved her and allowed her to recover after her accident. Now a strange sleep-walking illness seems to be taking people over though, and they're not recovering from it. What is causing the illness? What does SymboGen have to do with it? And how did Sal's tapeworm allow her to survive her accident? This was a great sci-fi horror story, and the twists just kept on coming. Sal was quite a difficult character to understand, but was easy enough to relate to. I felt really sorry for her in that her entire life had been deleted basically, and she had to start from scratch. I thought the way that her mother behaved towards her, and how she kept being told that she was nothing like the person she was before the accident was quite unfeeling though, and it was no wonder that Sal felt like she was continually being kept in the dark about things. I liked the storyline in this book. It was quite a slow building story, but there were numerous surprise happenings, and loads of twists in the tale right up to the end. The suspense and horror elements of the story were also quite slow building, but by the time the full ramifications of what was going on began to hit, it was really quite shocking on a very base level the world that the author had created, and the true implications about exactly what was happening. While this book wasn't one that I couldn't put down, it was interesting to the point where I happily got back into it, and I'm really looking forward to reading the next book and finding out what happens to Sal next. This really was captivating, and all-too-realistic horror story, that shocked me with how believable it was, and how possible it might be for this to really happen. Overall; a realistic and suspenseful, sci-fi horror story. 8.5 out of more
by Sarah Elizabeth
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