1. immunocompromised due to current use of immunosuppressive drugs or chemotherapy, have a history of hiv/organ transplant/ active hepatitis b or c, or are on hemodialysis or peritoneal dialysis 2. currently on oxygen supplementation greater than low flow nasal cannula (including home oxygen therapy; cpap for obstructive sleep apnea is not an exclusion) 3. have dnr status or not expected to survive \>7 days 4. experiencing shock (on vasopressors) or multiple organ dysfunction or failure 5. are co-infected with influenza a or b 6. history of dvt or pe within last 12 weeks 7. currently pregnant or nursing 8. participating in another therapeutic trial 9. allergic to cromolyn sodium.

1. immunocompromised due to current use of immunosuppressive drugs or chemotherapy, have a history of hiv/organ transplant/ active hepatitis b or c, or are on hemodialysis or peritoneal dialysis 2. currently on oxygen supplementation greater than low flow nasal cannula (including home oxygen therapy; cpap for obstructive sleep apnea is not an exclusion) 3. have dnr status or not expected to survive \>7 days 4. experiencing shock (on vasopressors) or multiple organ dysfunction or failure 5. are co-infected with influenza a or b 6. history of dvt or pe within last 12 weeks 7. currently pregnant or nursing 8. participating in another therapeutic trial 9. allergic to cromolyn sodium.

immunocompromised due to current use of immunosuppressive drugs or chemotherapy, have a history of hiv/organ transplant/ active hepatitis b or c, or are on hemodialysis or peritoneal dialysis currently on oxygen supplementation greater than low flow nasal cannula (including home oxygen therapy; cpap for obstructive sleep apnea is not an exclusion) have dnr status or not expected to survive >7 days experiencing shock (on vasopressors) or multiple organ dysfunction or failure are co-infected with influenza a or b history of dvt or pe within last 12 weeks currently pregnant or nursing participating in another therapeutic trial allergic to cromolyn sodium.

immunocompromised due to current use of immunosuppressive drugs or chemotherapy, have a history of hiv/organ transplant/ active hepatitis b or c, or are on hemodialysis or peritoneal dialysis currently on oxygen supplementation greater than low flow nasal cannula (including home oxygen therapy; cpap for obstructive sleep apnea is not an exclusion) have dnr status or not expected to survive >7 days experiencing shock (on vasopressors) or multiple organ dysfunction or failure are co-infected with influenza a or b history of dvt or pe within last 12 weeks currently pregnant or nursing participating in another therapeutic trial allergic to cromolyn sodium.

1. immunocompromised due to current use of immunosuppressive drugs or chemotherapy, have a history of hiv/organ transplant/ active hepatitis b or c, or are on hemodialysis or peritoneal dialysis 2. currently on oxygen supplementation greater than low flow nasal cannula (including home oxygen therapy; cpap for obstructive sleep apnea is not an exclusion) 3. have dnr status or not expected to survive >7 days 4. experiencing shock (on vasopressors) or multiple organ dysfunction or failure 5. are co-infected with influenza a or b 6. history of dvt or pe within last 12 weeks 7. currently pregnant or nursing 8. participating in another therapeutic trial 9. allergic to cromolyn sodium.

1. immunocompromised due to current use of immunosuppressive drugs or chemotherapy, have a history of hiv/organ transplant/ active hepatitis b or c, or are on hemodialysis or peritoneal dialysis 2. currently on oxygen supplementation greater than low flow nasal cannula (including home oxygen therapy; cpap for obstructive sleep apnea is not an exclusion) 3. have dnr status or not expected to survive >7 days 4. experiencing shock (on vasopressors) or multiple organ dysfunction or failure 5. are co-infected with influenza a or b 6. history of dvt or pe within last 12 weeks 7. currently pregnant or nursing 8. participating in another therapeutic trial 9. allergic to cromolyn sodium.