Star Trek: Enterprise (2001)

S02E14 Stigma

Title: Stigma Plot: The Enterprise arrives at a planet hosting an Interspecies Medical Exchange conference. Dr. Phlox seeks to gather information about a terminal illness from the Vulcan delegation, all while keeping T'Pol's infection a secret. As he navigates the delicate situation, Phlox must balance his desire for knowledge with the need to protect his colleague's privacy.