While in the Interspecies Medical Exchanges Conference, Dr. Phlox tries to learn the state-of-art treatment for the lethal and stigmatized disease Pa'nar Syndrome with the Vulcan physicians. He lies to the doctors and does not tell them that T'Pol has been infected when she was forced in the mind meld one year ago. The bigotry Vulcans do not give any information while T'Pol does not accept to reveal that she was assaulted because she does not accept the stigma and prejudice against the minorities in her planet. When the doctors discover that T'Pol is infected, they request her return to Vulcan to meet the High Command. Meanwhile, one of the wives of Dr. Phlox comes to the Enterprise to instruct Trip about the installation of a complex neutron microscope, and she flirts with him, trying to seduce the uncomfortable Trip.
In "Stigma", the Vulcans show their prejudice against minorities and that in spite of being technologically advanced, they have a very narrow mind. Trip shows his character, respecting Dr. Phlox in accordance with the best principles of human morality and respect. And T'Pol gives an example of strong personality, walking the way she talks. My vote is eight.
Title (Brazil): "Estigma" ("Stigma")