Dr. Elizabeth Sinskey- The director-general of the WHO, and the woman who hears (and dismisses) Bertrand Zobrist’s presentation and proposals. She is the mysterious, sleek woman who Langdon has been seeing in his visions since the beginning of the novel.

Council on Foreign Relations–  a non-profit organization headquartered in New York City that acts as a “think tank” and advisor specifically related to United States foreign affairs.

Gangrene– a life threatening condition that involves a large amount of tissue death. It usually occurs after some sort of injury or disease, generally caused by a lack of blood flow.

CDC– The Center for Disease Control and Prevention. An official branch of the United States government, its purpose is to monitor public health.

ECDC– The European Center for Disease Control and Prevention. It is the European equivalent of the CDC.

A member of the United States army in biohazard gear

Bioterrorist– A terrorist who uses chemical or biological weapons as the chosen medium of destruction.