1) Patient who have given written consent to participate in the study2) Age is over 20 years old, regardless of gender.3) SARS-CoV-2 PCR positive4) Patients who have no apparent pneumonia due to COVID-19 on plain chest radiographs5) Patients who can be hospitalized during study drug administration (Including accommodation and medical treatment)6) Patients who can inhale ciclesonide using inhalation assist device

1) Patient who have given written consent to participate in the study2) Age is over 20 years old, regardless of gender.3) SARS-CoV-2 PCR positive4) Patients who have no apparent pneumonia due to COVID-19 on plain chest radiographs5) Patients who can be hospitalized during study drug administration (Including accommodation and medical treatment)6) Patients who can inhale ciclesonide using inhalation assist device