Patients
From Feb 12, 2020 to Feb 18, 2020, 69 patients from Xiangyang Central
Hospital (31 with SARS-CoV-2-positive Pneumonia and 38 with
common Pneumonia) were retrospectively selected. The positive samples
were taken from COVID-19 patients diagnosed according to the Diagnosis
and Treatment Plan of COVID-19 (7th trial edition) of
the National Health, and the negative samples were from the common
pneumonia patients with negative nucleic acid diagnosis. All patient or
their families signed the informed consent. Subjects meeting the
following conditions were excluded from this study: 1) pregnant and
lactating women and 2) those with diseases that may affect the efficacy
or safety evaluation of this study (hematologic cancer, systemic lupus
erythematosus, and rheumatoid arthritis).