Julian Bashir was able to save the Dax symbiont, which was sent back to the Trill homeworld to be rejoined with a new host aboard the USS Destiny. When the symbiont's health worsened, the Dax symbiont was implanted into a new host named Ezri Dax, who was the assistant ship's counselor. She had not been trained to be a host, but she was the only available unjoined Trill aboard. Ezri had difficulty making the transition and sought out Ben Sisko on Earth.
Julian Bashir was able to save the Dax symbiont which was sent back to the Trill homeworld to be rejoined with a new host aboard the USS Destiny When the symbiont's health worsened the Dax symbiont was implanted into a new host named Ezri Dax who was the assistant ship's counselor She had not been trained to be a host but she was the only available unjoined Trill aboard Ezri had difficulty making the transition and sought out Ben Sisko on Earth