Narrow Results

This paper describes an evolutionary model based on sexual Penna model and shape space model with infection and immunity. Each individual is represented by Penna model with an immune system. In order to study how the infection and immunity influence the survival process, we modify the Verhulst factor. Then, we present the results of our simulations, and discuss the evolution of population and the effect of immunity respectively. In addition, we study the effect of the memory of the immune system and the effect of vaccination under different conditions.

In this paper, the individual is represented by a Bit-String based on the Penna model. The infection information is also denoted by a Bit-String including 0 and 1. The degree of getting an infection is rested with the matching degree between the Bit-String of the individual and the Bit-String of infection information. Thus, we define the Hamming Distance with age. The infection rules among individuals is described by Cellular Automata on the lattice with L * L. We discuss the existence and extinction for a certain infection on the process of evolution.