ABSTRACT
Introduction: Covid-19 is a pandemic infective disease which has been erupting throughout world from 2020 to 2021. From World Health Organizations (WHO) weekly report in 16th Aug 2021, more than 2 hundred million (206 693 357) of infected cases and more than 4 million (4 352 488) of deaths are confirmed in the world [1]. The daily report in UK in 18th Aug 2021, there are more than 6 million of infected cases (6 295 613) and 130 thousand of died cases (130 979) are confirmed, fluctuating figures on daily recently on infected and died cases with Covid-19 are reported although the severe case rates, hospitalized rates and died rate have decreased in UK [2].