Technical report: numerical estimation of three basic components of HIV model using 4th order Runge Kutta method / Nurnajwa Nisharrudin

HIV (Human Immunodeficiency Virus) is a retrovirus that unable to reproduce by it self but it's rely on a host of CD4 T cells to aid reproduction. The HIV infection model of CD4+ T cells used to describe the rate of susceptible, infected and free virus particles in the blood . In this study, the mathematical model consists of three non linear ordinary differential equations. The aim of this study is to obtain approximate solutions of HIV model of CD4+ T cells buy using the explicit 4th order of Runge Kutta. Next, HIV free particles in the blood was calculated to determine the existent of HIV particles in the blood with the change of each parameter based on the given data. The idea can be identify by calculating the reproduction number (R) and the result shows the maximum value of the data has higher virus population in the blood.