- exist of other evidences that can explain pneumonia including but not limited to influenza a virus, influenza b virus, bacterial pneumonia, fungal pneumonia, noninfectious causes, etc. - patients with respiratory diseases other than covid-19 infection - pregnant and breastfeeding women

- exist of other evidences that can explain pneumonia including but not limited to influenza a virus, influenza b virus, bacterial pneumonia, fungal pneumonia, noninfectious causes, etc. - patients with respiratory diseases other than covid-19 infection - pregnant and breastfeeding women