In this paper, we propose a mathematical model for the transmission of typhoid which
analyzes the impact of treatment of the infected individuals on the dynamics of the
disease. The model consists of human population and pathogen population. The
human population is subdivided into three compartments, namely susceptible individuals, infected individuals, and recovered individuals and pathogen population comprises one compartment. We derived the basic reproduction number R0, and analyzed
the dynamical behaviors of both disease free equilibrium and endemic equilibrium by
the theory of ordinary diferential equations. Using MATLAB, we carried out numerical
simulation and the fndings indicate that efective treatment is adequate in eradicating
typhoid fever.