tuberculosis , by then , stayed out on the reservations mostly , but the quaint notion that tucsons climate , its fresh air , sunshine and low-allergy saguaros could cure people of the killer lung disease was hinted at still in the sunny , cheerful postcards for sale at the motels , in the healthful orange and date stands on the side of the roads , oh , and in those neglected remains , the monstrous sanatoriums , and the teeny one room bungalows where the families of the tubercular stayed while they visited a patient in a sanitarium .