“…To predict the spread of COVID-19 in USA, the SEIRD epidemic model was developed in [19] . Many more mathematical models have also been produced on the COVID-19 pandemic, we are referring to [20] , [21] , [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] . Mathematical models were used to study the dynamics of several infectious diseases, not alone COVID-19.…”