A gripping medical and bioterrorism thriller by Robin Cook. Set in New York City, the novel follows Yuri Davydov, a Russian immigrant struggling with poverty, resentment, and disillusionment. Drawn into a dangerous extremist movement, Yuri becomes involved in a terrifying plot to unleash a deadly biological weapon on the city.

Meanwhile, medical examiner Dr. Jack Stapleton begins investigating suspicious deaths that seem unrelated at first but gradually reveal a much larger and more sinister threat. As the evidence mounts, Jack finds himself racing against time to prevent a catastrophic attack that could claim thousands of lives.

Combining medical science, terrorism, suspense, and cutting-edge biotechnology, Vector is one of Robin Cook's most intense and timely thrillers. The novel explores the dangers of bioweapons, radicalization, and the vulnerability of modern cities to unconventional attacks.