From Trek Today
While Enterprise visits a planet where an Interspecies Medical Exchange conference is taking place, Dr. Phlox tries to obtain research on a terminal disease from the Vulcan contingency there. But he must not reveal that T'Pol has contracted this disease, because that knowledge would forever stigmatize her among her people.
'Stigma' features the first appearance of one of Dr. Phlox's three wives, Feezal, only the second Denobulan to appear on Enterprise. (November 23, 2002 - TrekToday)
Seven-day production schedule ran from Tuesday, November 12 to Wednesday, November 20, 2002.
After years of rumours, Star Trek executive producer Rick Berman announced today an upcoming Enterprise episode will feature an AIDS-like storyline.
In the episode, currently called 'Stigma', T'Pol and Dr. Phlox will reveal the Vulcan first officer has been infected with a degenerative Vulcan disease. The reason T'Pol has kept secret she is suffering from the incurable illness was to avoid being associated with mind melders, the group in Vulcan society who suffer from the disease.
''By the end of the episode,"' Berman told William Keck at USA Today, "we're left with some open story elements. What we would most likely deal with is T'Pol's desire to educate the Vulcan people and destroy this sense of prejudice held against [mind melders]. "In true Star Trek form, we're hoping the young people who watch will have some degree of enlightenment about a situation they're not all that aware of."
Jolene Blalock told the paper she was pleased to be able to play this role. "Our generation has been educated; now it's time to educate the next generation - it's dangerous out there! This is something I really believe in, so I was honored to be chosen as the ill one."
Dr. Phlox is the character that they ought to develop more, so I'm pleased about this episode.