Assessment of Airway Obstruction in Infants With Lower Respiratory Infections

We hypothesize that VEGF production is higher in children with RSV infection than in children with other viral infections and normal controls. In addition, the degree of VEGF production is related to severity of airway obstruction. We also hypothesize that infants with higher VEGF levels are more likely to improve lung function following racemic epinephrine than albuterol.