  Since the very first days of announcing Covid 19 as a global pandemic,
researchers around the world from different backgrounds and organizations
including national governments and the World Health Organization (WHO) have
extensively begun using Modeling and Simulation (M&S) techniques in deciding on
the optimal strategies in order to mitigate the public health and economical
effects of Covid-19. In this paper, we present our results from applying M&S on
the city of Casablanca, Morocco to comprehend (i): How it can be relatively
easy or difficult for such pandemic to penetrate to the studied region
(country, city, district, etc.). (ii): How it can spread relatively fast or
slow within that region. And finally (iii): What is the optimal strategy for
containing and mitigating the propagation of the disease while still keeping
the economy as near to normal as possible.
