Parasite

Parasite by Mira Grant
504 Pages

In the near future nearly everyone has managed to overcome sickness by using a genetically modified tapeworm to boost our immune system and secret drugs.  Sally Mitchell is one such person and when she is nearly killed in a car crash, her intestinal bodyguard is credited for bringing her back from dead. 

Six years after the crash Sally is still putting her life back together when an outbreak of sleeping sickness starts to affect those around her.  With her boyfriend Nathan, Sally struggles to discover the truth behind Symbogen, the company who created the intestinal bodyguards and what is happening.

Part horror and part thriller, Grant has created a novel that has been compared to Michael Creighton's works.  Grant's writing style is easy to read and you'll fly through this book.