was reinstated, is a professor of immunology at the same university.

Do you have a source for that? All I can find (from Wikipedia) is that he was forced to resign from three positions he held, and that he was reappointed to one.

There's another article from a news source I don't particularly trust saying he was offered a new position in Japan.

Either way, even if he's doing fine now it was months of upheaval and a dedicated witch-hunt over comments that were taken completely out of context.