Vash was the daughter of Sharna.
In 2004, when the Atlantis expedition visited her planet, she was selected as one of five Honored Ones for the Wraithfall ceremony, along with Arno, Dakh and two others. Vash was the second to be given a holy medallion of Karra and was culled by a Wraith Dart. (SGA: "Wraithfall 1")
She was taken to Karra's neighbour planet, Vohl's experimental laboratory, where she was placed in a Wraith Needle Chamber to be tortured in a way to make her life force tasty to the Wraith. (SGA: "Wraithfall 2")