1. covid-19 pneumonia * diagnosed by the attending physician (oxygen saturation \< 95% or lung crackles) 2. positive pregnancy test for women of childbearing age\* 3. positive igg against sars-cov-2 by rapid diagnostic test. 4. negative sars-cov-2 pcr from a nasopharyngeal swab. * women of child bearing age may participate if they use a safe contraceptive method for the entire period of the study. a woman is considered to not have childbearing capacity if she is post-menopausal (minimum of 2 years without menstruation) or has undergone surgical sterilization (at least one month before the study)

1. covid-19 pneumonia * diagnosed by the attending physician (oxygen saturation \< 95% or lung crackles) 2. positive pregnancy test for women of childbearing age\* 3. positive igg against sars-cov-2 by rapid diagnostic test. 4. negative sars-cov-2 pcr from a nasopharyngeal swab. * women of child bearing age may participate if they use a safe contraceptive method for the entire period of the study. a woman is considered to not have childbearing capacity if she is post-menopausal (minimum of 2 years without menstruation) or has undergone surgical sterilization (at least one month before the study)

covid-19 pneumonia diagnosed by the attending physician (oxygen saturation < 95% or lung crackles) positive pregnancy test for women of childbearing age* positive igg against sars-cov-2 by rapid diagnostic test. negative sars-cov-2 pcr from a nasopharyngeal swab. women of child bearing age may participate if they use a safe contraceptive method for the entire period of the study. a woman is considered to not have childbearing capacity if she is post-menopausal (minimum of 2 years without menstruation) or has undergone surgical sterilization (at least one month before the study)

covid-19 pneumonia diagnosed by the attending physician (oxygen saturation < 95% or lung crackles) positive pregnancy test for women of childbearing age* positive igg against sars-cov-2 by rapid diagnostic test. negative sars-cov-2 pcr from a nasopharyngeal swab. women of child bearing age may participate if they use a safe contraceptive method for the entire period of the study. a woman is considered to not have childbearing capacity if she is post-menopausal (minimum of 2 years without menstruation) or has undergone surgical sterilization (at least one month before the study)

1. covid-19 pneumonia - diagnosed by the attending physician (oxygen saturation < 95% or lung crackles) 2. positive pregnancy test for women of child bearing age* 3. positive igg against sars-cov-2 by rapid diagnostic test. 4. negative sars-cov-2 pcr from a nasopharyngeal swab. - women of child bearing age may participate if they use a safe contraceptive method for the entire period of the study. a woman is considered to not have childbearing capacity if she is post-menopausal (minimum of 2 years without menstruation) or has undergone surgical sterilization (at least one month before the study)

1. covid-19 pneumonia - diagnosed by the attending physician (oxygen saturation < 95% or lung crackles) 2. positive pregnancy test for women of child bearing age* 3. positive igg against sars-cov-2 by rapid diagnostic test. 4. negative sars-cov-2 pcr from a nasopharyngeal swab. - women of child bearing age may participate if they use a safe contraceptive method for the entire period of the study. a woman is considered to not have childbearing capacity if she is post-menopausal (minimum of 2 years without menstruation) or has undergone surgical sterilization (at least one month before the study)