The following is an interesting essay on what happened during the first years of WW2 to the Jews interned in the Italian internment camp of Campagna, located near Salerno & Napoli in southern Italy:
http://researchomnia.blogspot.com/2020/03/venezia-giulias-jews-in-campagna.html
Photo (done in summer 1942) of some of the Jews from northern Italy and central Europe interned in the Campagna internment camp.
The essay pinpoints the complete difference between the treatment received by Jews in the Nazi camps of Germany and this one in southern Italy, where there were no deaths of interned Jews during the nearly 3 years of its existence.