STABILITY ANALYSIS OF MATHEMATICAL MODEL OF A RELAPSE TUBERCULOSIS INCORPORATING VACCINATION

Abstract

A general SIQRM epidemic model with vaccination and relapse possibility is proposed for analysis in this work. The idea behind the proposed model is to check the effect of immunity obtained from vaccine or treatment, quarantine effect as well as waning effect of immunity on the transmission rate of Tuberculosis within a population that is subjected to proper education without restricted access. Some other infectious diseases in this category include measles and Ebola. Two equilibrium states of the proposed model are obtained as well as the effective reproduction number (Reff ). Stability analysis of the model at the Infection Free Equilibrium (I.F.E) state is established on the condition that Reff < 1. Numerical simulation for the
general SIQRM model was done using specific data for Tuberculosis disease and the result shows that proper education, vaccination and early diagnosis of an infectious individual for quarantining is an efficient way by which the spread of Tuberculosis can be reduced in the population while adequate medical attention yield better result for detected cases.