inclusion criteria: 1. male or female, 18 years to 89 years old (inclusive). 2. hospitalized and diagnosed with covid-19, as evaluated by pcr test confirming infection with sars-cov-2. 3. patient is receiving supplemental oxygen (e.g. oxygen saturation (spo2) \<88%, labored breathing, increased respiratory rate, dyspnea on rest or exertion). 4. a signed informed consent form from the patient or the patient's legal representative must be available.

inclusion criteria: 1. male or female, 18 years to 89 years old (inclusive). 2. hospitalized and diagnosed with covid-19, as evaluated by pcr test confirming infection with sars-cov-2. 3. patient is receiving supplemental oxygen (e.g. oxygen saturation (spo2) \<88%, labored breathing, increased respiratory rate, dyspnea on rest or exertion). 4. a signed informed consent form from the patient or the patient's legal representative must be available.

inclusion criteria: male or female, 18 years to 89 years old (inclusive). hospitalized and diagnosed with covid-19, as evaluated by pcr test confirming infection with sars-cov-2. patient is receiving supplemental oxygen (e.g. oxygen saturation (spo2) <88%, labored breathing, increased respiratory rate, dyspnea on rest or exertion). a signed informed consent form from the patient or the patient's legal representative must be available.

inclusion criteria: male or female, 18 years to 89 years old (inclusive). hospitalized and diagnosed with covid-19, as evaluated by pcr test confirming infection with sars-cov-2. patient is receiving supplemental oxygen (e.g. oxygen saturation (spo2) <88%, labored breathing, increased respiratory rate, dyspnea on rest or exertion). a signed informed consent form from the patient or the patient's legal representative must be available.

inclusion criteria: 1. male or female, 18 years to 89 years old (inclusive). 2. hospitalized and diagnosed with covid-19, as evaluated by pcr test confirming infection with sars-cov-2. 3. patient is receiving supplemental oxygen (e.g. oxygen saturation (spo2) <88%, labored breathing, increased respiratory rate, dyspnea on rest or exertion). 4. a signed informed consent form from the patient or the patient's legal representative must be available.

inclusion criteria: 1. male or female, 18 years to 89 years old (inclusive). 2. hospitalized and diagnosed with covid-19, as evaluated by pcr test confirming infection with sars-cov-2. 3. patient is receiving supplemental oxygen (e.g. oxygen saturation (spo2) <88%, labored breathing, increased respiratory rate, dyspnea on rest or exertion). 4. a signed informed consent form from the patient or the patient's legal representative must be available.