What is the importance of the "Krankenbau" in the book, This Way for the Gas, Ladies and Gentlemen?

The Hospital, the Krankenbau, in the concentration camp is the setting for the tale “A True Story.” It is in this hospital that Tadek feels certain that he is dying of typhoid fever yet he is tormented by his bunkmate who wants Tadek to entertain him with stories of his life. This is the same hospital in which Tadek is working when he watches the man in the story “The Man with the Package” try to take his belongings with him to his death.