Doctor Jarem Kaz was a joined Trill Starfleet officer. The unjoined Trill Jarem had served as a medical officer on a Starfleet vessel, where he developed a vaccine for the deadly Lhaj Fever in his spare time. During the conflict with the Maquis, the Maquis Gradak Kaz, a joined Trill, was brought aboard Jarem's vessel, where he subsequently died. The symbiont Kaz was transplanted into the only available unjoined Trill, Jarem. Jarem was willing to take on the Kaz symbiont despite the risk of of the symbiont rejecting the host. Fortunately for Jarem, the symbiosis held, and the newly joined Jarem Kaz continued to serve Starfleet.
In early 2378, he served as a medical doctor at Starfleet Command, assigned to Project Full Circle under Admiral Kenneth Montgomery. Project Full Circle was charged with the task of examinging and remove the Borg and futuristic technology that had been used to modify USS Voyager during her seven year journey through the Delta Quadrant.
When Seven of Nine and Icheb were ordered arrested by Montgomery for suspicion of being involved with a Borg virus that was infecting Earth, Kaz examined the pair and quickly determined they were not involved with the plague. Despite this, Montgomery refused to allow the two former Borg to regenerate, putting their lives at risk.
Kaz contacted Admiral Kathryn Janeway, and the two of them conspired remove Seven and Icheb (as well as The Doctor) from their confinment, and bring them aboard Voyager, where they could regenerate. Soon after, Kaz was instrumental in identifying the source of the Borg plague and finding a cure.
Having earned the trust of Janeway and her former crew, Kaz was offered the position of Chief Medical Officer aboard Voyager by the vessels new captain, Chakotay. An offer that Kaz happily accepted.
Appearances
- VOY novel Homecoming
- VOY novel The Farther Shore
- VOY novel Spirit Walk: Old Wounds
- VOY novel Spirit Walk: Enemy of My Enemy
