inclusion criteria: - all consecutive patients suspected as covid-19 presented to the respiratory evaluation zone and outpatient clinic of our university will be subjected to rt-pcr test for covid. - patients proved to be rt-pcr positive will be included in the present study.

inclusion criteria: - all consecutive patients suspected as covid-19 presented to the respiratory evaluation zone and outpatient clinic of our university will be subjected to rt-pcr test for covid. - patients proved to be rt-pcr positive will be included in the present study.