inclusion criteria: 1. patients (age 18 years and older) who have tested positive or suspected/presumed positive for covid-19 using pcr real time test 2. patients with cough, shortness of breath or respiratory compromise (rr\>24/min, increased work of breathing.) 3. o2 saturation less than or equal to 96% on room air or sensation 4. agrees to use the gammacore sapphire device as intended and to follow all of the requirements of the study including recording required study data 5. permission for early am blood draw to freeze for subsequent lab tests and sequencing as related to covid-19 sequelae 6. patient is able to provide signed and witnessed informed consent

inclusion criteria: 1. patients (age 18 years and older) who have tested positive or suspected/presumed positive for covid-19 using pcr real time test 2. patients with cough, shortness of breath or respiratory compromise (rr\>24/min, increased work of breathing.) 3. o2 saturation less than or equal to 96% on room air or sensation 4. agrees to use the gammacore sapphire device as intended and to follow all of the requirements of the study including recording required study data 5. permission for early am blood draw to freeze for subsequent lab tests and sequencing as related to covid-19 sequelae 6. patient is able to provide signed and witnessed informed consent

inclusion criteria: patients (age 18 years and older) who have tested positive or suspected/presumed positive for covid-19 using pcr real time test patients with cough, shortness of breath or respiratory compromise (rr>24/min, increased work of breathing.) o2 saturation less than or equal to 96% on room air or sensation agrees to use the gammacore sapphire device as intended and to follow all of the requirements of the study including recording required study data permission for early am blood draw to freeze for subsequent lab tests and sequencing as related to covid-19 sequelae patient is able to provide signed and witnessed informed consent

inclusion criteria: patients (age 18 years and older) who have tested positive or suspected/presumed positive for covid-19 using pcr real time test patients with cough, shortness of breath or respiratory compromise (rr>24/min, increased work of breathing.) o2 saturation less than or equal to 96% on room air or sensation agrees to use the gammacore sapphire device as intended and to follow all of the requirements of the study including recording required study data permission for early am blood draw to freeze for subsequent lab tests and sequencing as related to covid-19 sequelae patient is able to provide signed and witnessed informed consent

inclusion criteria: 1. patients (age 18 years and older) who have tested positive or suspected/presumed positive for covid-19 using pcr real time test 2. patients with cough, shortness of breath or respiratory compromise (rr>24/min, increased work of breathing.) 3. o2 saturation less than or equal to 96% on room air or sensation 4. agrees to use the gammacore sapphire device as intended and to follow all of the requirements of the study including recording required study data 5. permission for early am blood draw to freeze for subsequent lab tests and sequencing as related to covid-19 sequelae 6. patient is able to provide signed and witnessed informed consent

inclusion criteria: 1. patients (age 18 years and older) who have tested positive or suspected/presumed positive for covid-19 using pcr real time test 2. patients with cough, shortness of breath or respiratory compromise (rr>24/min, increased work of breathing.) 3. o2 saturation less than or equal to 96% on room air or sensation 4. agrees to use the gammacore sapphire device as intended and to follow all of the requirements of the study including recording required study data 5. permission for early am blood draw to freeze for subsequent lab tests and sequencing as related to covid-19 sequelae 6. patient is able to provide signed and witnessed informed consent