He escaped by joining an outgoing transport of inmates to Gross-Rosen concentration camp where he was forced to work as an electrician.
After an all-night walk, the group reached Donaueschingen on April 23, 1945, two days after the French had occupied the city.
[2] After the Nazi regime ceased to exist and after his recovery, Weintraub began to study medicine at the University of Göttingen.
Weintraub completed his doctorate in 1966, but in 1969 he lost his post as a senior physician at a clinic in Otwock due to rising anti-Semitism in Poland.
His wife Katja Weintraub, who translated works by Janusz Korczak from Polish into German, died in Stockholm in 1970.
[7] Weintraub serves as a witness and oral historian of The Holocaust, giving lectures in Germany and Poland, mainly to scholars and students, as well as appearing in television documentaries and discussions.