An analysis of the model for the dengue fever with two strains

Abstract

We study the SIR model of transmission of dengue fever with two pathogen strains. A model is constructed to study the effects of different factors on the course of the epidemic. The difference between the two strains are not discussed. Instead, we focus on the trends of primary infection and secondary infection. Our analysis by computer simulation shows that factors related to the host (such as host population) do not change the pattern of the spread signigicantly. In contrast, factors related to the vector (such as vector population, vector life span and biting rate) have a more significant effect on the outbreak of secondary infection.