Journal Name:
- International Journal of Science and Engineering Investigations
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Abstract (2. Language):
Five (5) Compartmental model of (S, E, Q, I, R) were presented to have better understanding on the effect of quarantine of exposed individuals in the dynamical spread of Diphtheria disease in the population. The stability of the model was analyzed for the existence of disease free and endemic equilibrium points. Basic Reproduction Number (R0) was obtained using next generation matrix method (NGM), and it is shown that the disease free equilibrium point is locally asymptotically stable whenever the basic reproduction number is less than unity i.e. (R0˂1) and unstable whenever the basic reproduction number is greater than unity (R0˃1).The basic reproduction number which is the number of new infected individual generated by a single infectious individual is a very important tool that helps in determining whether the disease persists and become endemic or dies out in the society. The model was solved numerically using the mathematical software (MAPLE) and the results were presented graphically. It was discovered that the higher the quarantine rate of exposed individual the lower the reproduction number and less is the infected individuals. Therefore, effort should be put in place in intensifying the quarantine rate of the disease so as to have the basic reproduction number not greater than unity, in order to prevent the endemic situation.
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