Vector is the 1999 suspense thriller book written by Robin Cook.
New York City cab driver Yuri Davydov is a disgruntled Russian émigré poised to lash out at the adoptive nation he believes has denied him the American Dream. A former technician in the Soviet biological weapons program in Sverdlosk, BIOPREPARAT, Yuri possesses the knowledge and expertise to wreak havoc in the Big Apple.