As the patients spent a long time — typically several years — in the sanatorium, there was a distinct community atmosphere among both staff and patients; something which Aalto had taken into account in his designs, with various communal facilities, a chapel, as well as staff housing, and even specially laid out promenade routes through the surrounding forest landscape. In the 1950s the disease could be partly dealt with by surgery and thus a surgery wing, also designed by Aalto's architect studio, was added. Soon after, antibiotics saw the virtual end of the disease, and the number of patients was reduced dramatically and the building was converted into a general hospital.