Transplant

Transplant was the medical procedure of using organic material from one source and incorporating it into another organism. This was most commonly used with bodily tissue (major organs, skin tissue, etc).

Vidiians continually transplanted new organic tissue into their bodies as a result of the Phage. 

Known transplants
The following is a detailed listing of all transplantation procedures performed by Starfleet medical personnel.


 * In 2152, Doctor Phlox transplanted a pituitary gland from a Calrissian chameleon into Porthos, Captain Jonathan Archer's pet beagle, after it contracted a pathogen from Kreetassan's home planet. The pathogen had summarily weakened Porthos' immune system, causing the dog's original pituitary gland to fail.


 * On Stardate 48532.4 (2371), The Doctor transplanted one of Kes' lungs into Neelix after both of his lungs were taken by the Vidiians. The Doctor was ultimately helped in this transplant by the Vidiians responsible in return for their release from USS Voyager.


 * Rao Vantika experimented with organ transplants to prolong his life.


 * In 2372, The Doctor transplanted part of Lieutenant jg B'Elanna Torres' parietal lobe into the Vidiian Dr. Pel so that Torres' Klingon DNA would help stabilize Pel's bio-neural implant.


 * In 2374, Ishka, wife of Grand Nagus Zek, suffered a possible heart attack or cardiac arrest and had to be given a new heart by Chief Medical Officer Dr. Julian Bashir.