Inclusion Criteria:  Primary diagnosis of asthma AND age >2 to <18 years-old at time of admission to the hospital OR Primary diagnosis of pneumonia AND age >2 months and <18 years at time of admission to the hospital OR Primary diagnosis of bronchiolitis AND age <2 years at time of admission to the hospital  Exclusion Criteria:  Diagnosis of SARS-CoV-2 Transfer in from another inpatient facility Pre-existing chronic illnesses (e.g., lung disease, cardiovascular disease, neurologic disorders)