In December 2019, a severe respiratory disease was first appeared in Wuhan, China and has now spread to many countries and affected many people around the world (WHO, 2020). This pandemic disease was named coronavirus disease 2019 (COVID-19) by the World Health Organization (WHO) and was found to be caused by a novel virus belongs to the family Coronaviridea (WHO, 2020; Zhou et al., 2020). Because of the high homology with the Severe Acute Respiratory Syndrome Corona Virus (SARS-CoV), the novel virus was named as Severe Acute Respiratory Syndrome Corona Virus-2 SARS-CoV-2 (Zhu, Zhang, et al., 2020). Coronaviruses have caused large health epidemics in the past, as SARS-CoV caused a health epidemic in 2003, and another large-pandemic outbreak caused by the Middle-East Respiratory Syndrome CoronaVirus (MERS-CoV) in 2012 (reviewed in Di Mascio et al., 2020). SARS-CoV and SARS-CoV-2 recognise the same human cell receptor; angiotensin-converting enzyme 2 (ACE2), while MERS-CoV binds to a different receptor called dipeptidyl peptidase 4 DPP4