Immunity Index: A Novel

Sue Burke, author of Semiosis and Interference, gives readers a new near-future, hard sf novel. Immunity Index blends Orphan Black with Contagion in a terrifying outbreak scenario.

Bustle's 40 Best New Books May 2021

Amazon Best of the Month May 2021

In a US facing growing food shortages, stark inequality, and a growing fascist government, three perfectly normal young women are about to find out that they share a great deal in common.

Their creator, the gifted geneticist Peng, made them that way—before such things were outlawed.

Rumors of a virus make their way through an unprotected population on the verge of rebellion, only to have it turn deadly.

As the women fight to stay alive and help, Peng races to find a cure—and the cover up behind the virus. Other Books by Sue Burke Semiosis duology Semiosis

Interference

Immunity Index

Dual Memory

At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

© 2025 Tor Books (Ebook): 9781250317865

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Ebook: 23 September 2025