The risk of tuberculous infection in Sweden.

Tubercle
I Sjögren, I Sutherland

Abstract

Large sections of the population of Sweden were tuberculin tested during the 1940s prior to BCG-vaccination. This material has been used to estimate the risk of tuberculous infection and its trends with calendar year and age. An analysis of the results of approximately 200,000 tuberculin tests in military recruits and schoolchildren was made, using the method developed in the Tuberculosis Surveillance Research Unit. The risk of infection was estimated to be 2-8 per cent at age 10 in 1935, the rate decreasing by 9-0 per cent annually. There was also a substantial increase in the risk with each year of age, amounting to 8-6 per cent for each year of age. Separate analyses of the risk of infection and its trend with time for each of the individual 24 counties and the city of Stockholm, showed considerable variations in the level of the risk between the different areas. These are related to variations in tuberculosis in cattle in a further report. In seven areas information was available from earlier surveys in schoolchildren or recruits, using the same method of testing. In these areas separate estimates of the calendar trend of the risk of infection and the age trend have been made. The decrease in the risk with calendar year and...Continue Reading

Citations

Jun 1, 1975·Tubercle·I Sjögren, I Sutherland
Jun 1, 1992·Tubercle and Lung Disease : the Official Journal of the International Union Against Tuberculosis and Lung Disease·V RomanusH O Hallander
Dec 1, 1994·Tubercle and Lung Disease : the Official Journal of the International Union Against Tuberculosis and Lung Disease·P de March-Ayuela
Feb 3, 2009·International Journal of Infectious Diseases : IJID : Official Publication of the International Society for Infectious Diseases·Michael Clark, D William Cameron
Apr 25, 2017·Epidemiology and Infection·J L ZelnerJ J Feigenbaum
Jul 23, 2020·Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research·Jesper DahlHaakon E Meyer
Oct 14, 2018·Journal of Theoretical Biology·Yuko HamaguchiHiroshi Nishiura

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