In this monograph Tengve reviews the literature on tuberculosis in the aged. He discusses symptomatology and classification of types, and the incidence of tuberculosis in Sweden in several age groups, including that of the aged. The drop in the tuberculosis mortality rate in Sweden, chiefly in the age group 20 to 30, accentuates the mortality rate in the age group over 60. Tuberculosis in old persons has thus acquired a mounting importance. The author suggests also that the relatively high incidence in the aged may be a relic from the times when the tuberculosis mortality rate in Sweden was much higher than it is now and that these facts might justify the assertion that in 10 or 20 years' time we will witness a significant diminution of the general death rate in tuberculosis.
Analysis of cases shows that the percentage of open cases is much higher in old persons with