Pregnant women with mild / moderate COVID-19 hospitalization in Al-Zahra Hospital in Rasht Diagnosis based on a positive PCR or antigen test results Hospitalization on the day of admission Onset of Covid symptoms up to 5 days before admission to the study Gestational age>12 weeks Age≥ 16 years fever (oral temperature ≥37.2 ° C) Having at least one of the criteria of respiratory rate≥24 per minute or oxygen saturation < 93 (without oxygen) Pa2 / Fi2 Completion of informed consent form

Pregnant women with mild / moderate COVID-19 hospitalization in Al-Zahra Hospital in Rasht Diagnosis based on a positive PCR or antigen test results Hospitalization on the day of admission Onset of Covid symptoms up to 5 days before admission to the study Gestational age>12 weeks Age≥ 16 years fever (oral temperature ≥37.2 ° C) Having at least one of the criteria of respiratory rate≥24 per minute or oxygen saturation < 93 (without oxygen) Pa2 / Fi2 Completion of informed consent form