DOI: 10.21276/sjpms.2018.5.2.5

Pages: 130-136

The parameter, , called the basic reproduction number, can be obtained by the methods called First Generation and Eigen-value Approaches. The significance of this parameter is to summarize the dynamics of an infection in human populations. This parameter is called a threshold parameter. A population gets infected by an infectious disease if Epidemiologists thrive to have so that the disease dies out. However, some simple models of bacterial-caused diseases (such as malaria) revealed that, in theory, it is possible for an infection to persist indefinitely even if we have . If we encounter such a scenario, we call it a bitable equilibrium. This paper focuses mainly on the analysis of the Disease-Free Equilibrium Point [DFEP], using the first generation and eigen-value approaches to see the circumstances surrounding the propagation of an infectious disease.