How do you stop an invisible killer?When a young woman in New York City dies mysteriously after a trip to Brussels, top epidemiologist Lowell Kaplan identifies the cause of death as the Marburg Virus--a fatal strain that has surfaced only once before in history.Determined to trace the source of the disease, Kaplan follows a trail of intrigue from the labs of Germany to the jungles of Central Africa.With danger nipping at his heels, and the secrets of the virus's origin kept deliberately under wraps, Kaplan must go to unimaginable lengths to stop a deadly scheme.