1. Introduction
COVID-19 is an infectious disease caused by a newly discovered strain of coronavirus; a type of virus known to cause respiratory infections in humans. This new strain was unknown before December 2019, when an outbreak of pneumonia of unknown cause emerged in Wuhan, China (1). On March 11th, 2020, the World Health Organization (WHO) (1) declared that COVID-19 is a worldwide pandemic as the disease had spread enormously worldwide.
To combat COVID-19, many countries have…




