id author title date pages extension mime words sentences flesch summary cache txt cord-283092-t3yqsac3 Shah, Kamal Qualitative Analysis of a Mathematical Model in the Time of COVID-19 2020-05-25 .txt text/plain 3345 235 60 In this article, a qualitative analysis of the mathematical model of novel corona virus named COVID-19 under nonsingular derivative of fractional order is considered. Under the new nonsingular derivative, we, first of all, establish some sufficient conditions for existence and uniqueness of solution to the model under consideration. For the semianalytical results, we extend the usual Laplace transform coupled with Adomian decomposition method to obtain the approximate solutions for the corresponding compartments of the considered model. From Figure 1 , we see that at when the rate of healthy immigrants is zero, it means that protection rate is increasing and hence the population of infected class is decreasing while the population of healthy class is increasing at different rates due to fractional order derivative by evaluating the solution up to twenty terms via using MATAB. ./cache/cord-283092-t3yqsac3.txt ./txt/cord-283092-t3yqsac3.txt