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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 Intestinal Bodyguard worm 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.
"A riveting near-future medical thriller that reads like the genetically-engineered love child of Robin Cook and Michael Crichton."—John Joseph Adams
"Readers with strong stomachs will welcome this unusual take on the future."—Kirkus Reviews
"Fans of [the Newsflesh] series will definitely want to check this new book out. But fans of Michael Crichton-style technothrillers will be equally enthralled: as wild as Grant's premise is, the novel is firmly anchored in real-world science and technology."—Booklist
"Grant extends the zombie theme of her Newsflesh trilogy to incorporate thoughtful reflections on biomedical issues that are both ominously challenging and eerily plausible. Sally is a complex, compassionate character, well suited to this exploration of trust, uncertainty, and the price of progress."—Publishers Weekly
"It's a well-grounded medical wariness that gets at the heart of what the Parasitology series will be asking: What happens when the cure is worse than the disease?"—NPR Books
"An exceptionally creepy medical-horror thriller that's the perfect spine-tingling read for Halloween... [a] roller coaster ride."—Fort Worth Star-Telegram