A user, Faithmac, on the UC forum just recently got through this process. Pretty much the same story, been on humira and needed to switch to entyvio. Multiple positive tb tests, no signs of active tb, went to infectious disease doctor, and cleared to take entyvio recently.
3.) 10/13/2017: Going on Entyvio from Faithmac
www.healingwell.com/community/default.aspx?f=38&m=39270352.) 9/13/2017: Update on TB test from Faithmac
www.healingwell.com/community/default.aspx?f=38&m=39120021.) 8/18/2017: Initial post from Faithmac: Really screwed!
www.healingwell.com/community/default.aspx?f=38&m=3900137Her email is shared on her profile, so I bet you could reach out to her!
Good luck!