Statistics Edit. 1  Jack has killed 309 people on screen. 2  Of these deaths, 244 were the direct result of gunshot wounds (79%). 3  Jack killed, on average, 1.5 people per hour over the whole run of the show, or 1 person every 40 minutes. In Jack Bauer's file, Serge from Day 1 is listed as a confirmed kill by Jack. 2  Despite this, his death was not seen on-screen. 3  In Jack Bauer's file, Omar from Day 4 is listed as a kill by Jack. 4  Despite this, he was killed by the Marines.
Definition of attenuate. 1  1 : reduced especially in thickness, density, or force the attenuate limbs of a starving person. 2  2 : tapering gradually usually to a long slender point attenuate leaves.
Attenuated vaccine. An attenuated vaccine is a vaccine created by reducing the virulence of a pathogen, but still keeping it viable (or live). Attenuation takes an infectious agent and alters it so that it becomes harmless or less virulent. These vaccines contrast to those produced by killing the virus (inactivated vaccine).