- Subjects who do not meet the diagnosis for bronchiolitis, viral pneumonia or other significant respiratory viral infection; all patients with underlying diagnosis of asthma/RAD, recurrent wheezing, "recurrent bronchiolitis", allergic rhinitis, atopy, any chronic lung disease, hypertension, heart failure, kidney failure receiving or not dialysis, pulmonary hypertension, primary ciliary dyskinesia, bronchiectasis, alveolitis, lung transplant rejection, pulmonary sarcoidosis, chronic cough (i.e. greater four weeks), systemic sclerosis, hypersensitivity, cystic fibrosis, HIV, sickle cell anemia, cardiac pulmonary bypass, liver cirrhosis, alpha-1 anti-trypsin disease and interstitial lung.