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Reproduction in the species is accomplished by embedding a [[parasite]] into the [[thymus]] of a host [[humanoid]]. The parasite then uses the host's [[immune system]] to spread genetic instructions, transforming the [[DNA]] of the host to match its own. |
Reproduction in the species is accomplished by embedding a [[parasite]] into the [[thymus]] of a host [[humanoid]]. The parasite then uses the host's [[immune system]] to spread genetic instructions, transforming the [[DNA]] of the host to match its own. |
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| − | In [[2362]], the 49 |
+ | In [[2362]], the 49-member crew of the [[Starfleet]] [[outpost]] on Tarchannen III disappeared. The [[USS]] [[USS Victory|''Victory'']] was dispatched to investigate and but found no trace of the missing personnel. In [[2367]], the members of the ''Victory'' away team that had investigated the disappearence began to desert their post and return to Tarchannen. It was discovered that these crewmen, including [[Geordi La Forge]], were infected by the parasite and transforming into the Tarchannen III species. |
| − | In the case of [[Lieutenant]] [[Susanna Leijten]], as observed by [[Doctor]] [[Beverly Crusher]] ([[CMO]], [[USS Enterprise (NCC-1701-D)|USS ''Enterprise''-D]]), the parasite had remained dormant for five years before beginning to transform Leijten's DNA. The patient first began to exhibit |
+ | In the case of [[Lieutenant]] [[Susanna Leijten]], as observed by [[Doctor]] [[Beverly Crusher]] ([[CMO]], [[USS Enterprise (NCC-1701-D)|USS ''Enterprise''-D]]), the parasite had remained dormant for five years before beginning to transform Leijten's DNA. The patient first began to exhibit symptoms of anxiety. Tests showed that her [[blood]] chemistry was abnormal and that she had a [[histamine]] response to something unknown. Dr. Crusher then performed a complete blood and tissue analysis, but the tests were inconclusive. Leijten began to suffer tremors in her hands, and increased visual sensitivity. Shortly after this she collapsed and it was discovered that she had blue vein-like growths on her neck and that two of the digits of her right hand had grown into one. The patient's physical form continued to rapidly change. The growths soon covered her entire body and her [[eye]]s changed color. She developed a strong sensitivity to light and her blood pressure dropped. Dr. Crusher administered a [[T-cell]] booster to attempt to stabilize her immune system. An examination of a cell taken from her skin showed it to be identical to alien cells found during an earlier the investigation of the missing crewmen. <!--Dunno how to add this: Crusher: I've tested the cell wall integrity. Its viability is extremely low. It isn't possible for Susanna to transmit it.--> Upon further study, Dr. Crusher located the parasite in Leijten's thymus and discovered the nature of its operation. She was able to remove the parasite and regenerate the DNA of the patient. ([[TNG]]: "[[Identity Crisis]]") |
:''The two unnamed members of this species were played by [[Brian Phelps]] and [[Mark Thompson]].'' |
:''The two unnamed members of this species were played by [[Brian Phelps]] and [[Mark Thompson]].'' |
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Revision as of 17:33, 21 January 2007
A member of the species exposed by an ultraviolet light
The species footprints and cells, from the Enterprise-D computer
The Tarchannen III species are a non-sentient species native to Tarchannen III. They have a characteristic mimetic ability that makes them nearly invisible. A radiant reaction in the skin simulates light and acts as a kind of biological cloaking device. This, coupled with their low body temperature, makes them nearly impossible to detect.
Reproduction in the species is accomplished by embedding a parasite into the thymus of a host humanoid. The parasite then uses the host's immune system to spread genetic instructions, transforming the DNA of the host to match its own.
In 2362, the 49-member crew of the Starfleet outpost on Tarchannen III disappeared. The USS Victory was dispatched to investigate and but found no trace of the missing personnel. In 2367, the members of the Victory away team that had investigated the disappearence began to desert their post and return to Tarchannen. It was discovered that these crewmen, including Geordi La Forge, were infected by the parasite and transforming into the Tarchannen III species.
In the case of Lieutenant Susanna Leijten, as observed by Doctor Beverly Crusher (CMO, USS Enterprise-D), the parasite had remained dormant for five years before beginning to transform Leijten's DNA. The patient first began to exhibit symptoms of anxiety. Tests showed that her blood chemistry was abnormal and that she had a histamine response to something unknown. Dr. Crusher then performed a complete blood and tissue analysis, but the tests were inconclusive. Leijten began to suffer tremors in her hands, and increased visual sensitivity. Shortly after this she collapsed and it was discovered that she had blue vein-like growths on her neck and that two of the digits of her right hand had grown into one. The patient's physical form continued to rapidly change. The growths soon covered her entire body and her eyes changed color. She developed a strong sensitivity to light and her blood pressure dropped. Dr. Crusher administered a T-cell booster to attempt to stabilize her immune system. An examination of a cell taken from her skin showed it to be identical to alien cells found during an earlier the investigation of the missing crewmen. Upon further study, Dr. Crusher located the parasite in Leijten's thymus and discovered the nature of its operation. She was able to remove the parasite and regenerate the DNA of the patient. (TNG: "Identity Crisis")
- The two unnamed members of this species were played by Brian Phelps and Mark Thompson.