Hamburger such as , due to the occasional initial improper preparation of the meat, so caution is needed during handling and cooking. Because of the potential for food-borne illness, the USDA recommends hamburgers be cooked to an internal temperature of . If cooked to this temperature, they are considered well-done. Burgers can also be made with patties made from ingredients other than beef. For example, a "turkey burger" uses ground turkey meat, a "chicken burger" uses ground chicken meat. A "buffalo burger" uses ground meat from a bison, and an "ostrich burger" is made from ground seasoned ostrich meat. A deer
Rudolf Hamburger been n the region where Rudolf Hamburger was living. At some stage Rudolf Hamburg picked up a copy of Pravda and read about the East German architects' visit. The article mentioned that Paulick was part of the delegation, indicating that he had now returned from China to the German Democratic Republic. This is what had prompted Hamburger's attempts, pursued with characteristic doggedness, to contact his old friend. It appears from surviving correspondence that Paulick's further letters to Hamburger while he was still in Kamensk were delivered as additions to letters from Ursula, his ex-wife, which seems to have increased the