SciELO - Scientific Electronic Library Online

 
vol.11 issue2Trends of under-reporting of cases during an outbreak of meningococcal meningitis in the State of S. Paulo (Brazil), from 1971 through 1975Ecological aspects of South American Trypanosomiasis: IX - Variation and mobility of Panstrongylus megistus in artificial ecotopes author indexsubject indexarticles search
Home Page  

Revista de Saúde Pública

Print version ISSN 0034-8910

Abstract

RUFFINO-NETTO, Antonio. Epidemiometric models in tuberculosis: definition of "states" and risk of infection. Rev. Saúde Pública [online]. 1977, vol.11, n.2, pp. 188-198. ISSN 0034-8910.  http://dx.doi.org/10.1590/S0034-89101977000200004.

Through a rationale used in thermodynamics some "states" or "compartments" in the natural history of Tuberculoses are defined. Based on macroscopic changes observed in the total system an attempt is made to quantify the dynamics of these changes in the following "states": "virgin of infection", "infected" and "sick". A new way to calculate the risk of becoming infected by Tuberculosis, following the laws which govern the variation of the contents in a system of compartments, is presented. A sketch showing the relationships among the considered "states", the equations of the dynamics of them and a formula to calculate the risk of infection is also presented.

Keywords : Tuberculosis [epidemiometric models]; Tuberculosis [risk of infection]; Epidemiology.

        · abstract in Portuguese     · text in Portuguese     · pdf in Portuguese