Yeah, they won in the state of Thuringia. This is a symbolic victory because the city of Jena is a historical location of cultural revolution in Deutschland. Jena -> Leipzig -> Dresden -> the Fatherland follows. That was before WW2.
The AfD came in second place in Saxxony, which is the homestate of Leipzig and Dresden.
Germany is trying to contain the outbreak by claiming it to be an "East German" problem. They're saying it is a failure of re-unification. East Deutschland was Soviet occupied zone, after WW2, and didn't receive the same re-education oppression that their effeminized cousins in the West and Sourth were subjected to.