COVID-19(7) Prevalence(6) Saudi Arabia(6) 95% CI(5) Patient(5) hepatitis B(5) patients(5) severity(5) cirrhosis(4) retrospective(3) higher risk(3) lung infiltration(3) lung field(3) Cytokine storm syndrome(3) Novel coronavirus(3) GI symptom(3) Manifestations(3) acute respiratory distress(3) Middle East(3) syndrome(3) vomiting(3) hospital(3) age(3) conducted(3) diarrhea(3) death(3) severe COVID-19 disease(3) Hepatitis(3) Altered mental status(3) university hospital(3)