No, from what I read they had Zyklon B by 1940, and only used it in the gassing chamber at the behest of the assistant commander of Auschwitz-Birkenau in 1941. Typhus was already in the camp, he just resisted by putting infected Lice on the murderous SS Guards. Letting them feel some suffering for what they did to hundreds if not thousands of others.
No, from what I read they had Zyklon B by 1940, and only used it in the gassing chamber at the behest of the assistant commander of Auschwitz-Birkenau in 1941. Typhus was already in the camp, he just resisted by putting infected Lice on the murderous SS Guards. Letting them feel some suffering for what they did to hundreds if not thousands of others.