Yiddish to English Other General / Conversation / Greetings / Letters German of 1940s

I am translating a series of heart-rending letters between family members variously in the Lemberg ghetto and internment camps in France, some still living in Vienna and one a refugee in London. The term "Zures" seems to mean some kind of troubles, difficulties as in when will these "Zures" stop but I can't find it in German dictionaries. It could of course be a family term but there is also the possibility it is Yiddish, Ukrainian or Hebrew. Any ideas? Many, many thanks in advance for your help.