Added by 66 members
2014 Hugo Award for Best Novel (nominee)
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.
Genre: Science Fiction
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.
Genre: Science Fiction
Praise for this book
"A riveting near-future medical thriller that reads like the genetically-engineered love child of Robin Cook and Michael Crichton." - John Joseph Adams
"A creepy spine-tingler of a medical thriller." - Charles Stross
"A creepy spine-tingler of a medical thriller." - Charles Stross
Visitors also looked at these books

Best American Science Fiction and Fantasy 2026
(Best American Science Fiction and Fantasy)
John Joseph Adams and Olivie Blake
Used availability for Mira Grant's Parasite