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Author: Mira Grant
Publisher: Orbit, 2013
Series: Parasitology: Book 1

1. Parasite
2. Symbiont
3. Chimera

Book Type: Novel
Genre: Science-Fiction
Sub-Genre Tags: Near-Future
Human Development
Avg Member Rating:
(100 reads / 56 ratings)


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.


August 17, 2015: Time stamp 15:06.

[The recording is crisp enough to look like a Hollywood film, too polished to be real. The lab is something out of a science fiction movie, all pristine white walls and gleaming glass and steel equipment. Only one thing in this scene is fully believable: the woman standing in front of the mass spectrometer, her wavy blonde hair pulled into a ponytail, a broad smile on her face. She is pretty, with a classic English bone structure and the sort of pale complexion that speaks less to genetics and more to being the type of person who virtually never goes outside. There is a petri dish in her blue-gloved hand.]

Dr. Cale: Doctor Shanti Cale, Diphyllobothrium symbogenesis viability test thirty-seven. We have successfully matured eggs in a growth medium consisting of seventy percent human cells, thirty percent biological slurry. A full breakdown of the slurry can be found in the appendix to my latest progress report. The eggs appear to be viable, but we have not yet successfully induced hatching in any of the provided growth mediums. Upon consultation with Doctor Banks, I received permission to pursue other tissue sources.

[She walks to the back of the room, where a large, airlock-style door has been installed. The camera follows her through the airlock, and into what looks very much like an operating theater. Two men are waiting there, faces covered by surgical masks. Dr. Cale pauses long enough to put down her petri dish and put on a mask of her own.]

Dr. Cale: The subject was donated to our lab by his wife, following the accident which left him legally brain-dead. For confirmation that the subject was obtained legally, please see the medical power of attorney attached to my latest progress report.

[The movement of her mask indicates a smile.]

Dr. Cale: Well. Quasi-legally.

[Dr. Cale crosses to the body. Its midsection has been surrounded by a sterile curtain; the face is obscured by life support equipment, and by the angle of the shot. She pulls back the curtain to reveal the gleaming interior of the man's sliced-open abdomen. The skin has been peeled back, and the blood has been suctioned away, revealing a wide array of colors. Liver brown, intestinal green and glistening white, and the smooth pink sac of the stomach. Calmly, she reaches into the man's body, pushing organs aside until the surface of the small intestine is revealed.]

Dr. Cale: Scalpel.

[One of the masked men passes her the requested tool. She takes it, pressing down against the man's intestine. He does not move. Her hand does not tremble.]

Dr. Cale: I am not following strict sterile protocol, in part because infection is not a risk. The subject's immune system has been supplemented. D. symbogenesis eggs were introduced to the subject's system six days ago, fed into his body along with the nutrient paste we have been using to preserve basic biological functions.

[The surface of the intestine splits, spilling a thin film of brownish liquid over the surrounding organs. Dr. Cale ignores it as she sets the scalpel aside and thrusts her hand into the man's body. He still does not move as she digs through his small intestine. When she finally retracts her hand, she is clutching something. She pulls down her mask with her free hand and directs a beatific smile toward the camera.]

Dr. Cale: I am pleased to report that we have multiple fully- formed proglottids present in the subject's body, as well as some partial strobila.

[She holds out her hand. The camera zooms in on the white specks writhing against her gloved fingers.]

Dr. Cale: D. symbogenesis is capable of maturing when cultured inside a living human host. Ladies and gentlemen... at long last, it's alive.

[The film ends there. There are no notes in Dr. Cale's progress reports relating to the eventual fate, or original identity, of the first human subject used to culture D. symbogenesis. The medical power of attorney referenced in the recording has never come to light.]

[End report.]

Copyright © 2013 by Mira Grant


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