Home / Social Mobility and the Evolution of Tuberculosis

Social Mobility and the Evolution of Tuberculosis

The explicit causes of the historic decline of mortality and morbidity rates of tuberculosis (TB) have not yet been clearly understood. Two different hypotheses have been proposed: a) The influence of public health programs against transmission of tuberculosis. b) The improvement of living standards, which decreased the likelihood of progression to active-TB; and Hypothesis (b) was already tested for the simple case of homogeneous population. Nevertheless, it is known that there exists a strong positive correlation between incidence of active-TB and poverty. In this work we introduce some degree of population heterogeneity. Population is divided in two classes: One is below the poverty level and the other one is above it is assumed that risk of progression to active-TB is greater in the population living below poverty level. United States data on poverty levels (measured by annual household income) is used in order to approximate the time evolution of the size of the population living below poverty levels.

Article Number:
BU-1589-M

Year:
2001

Authors:
Elmer De La Pava - Salgado, Corporacion Autonoma de Occidente, Colombia
Beatriz Salguero - Rivera, Corporacion Autonoma de Occidente, Colombia
Project supervisor: Juan P. Aparicio, Universidad de Belgrano, Argentina

social_mobility_and_the_evolution_of_tuberculosis.pdf