The primary objective of this study is to describe the incidence of RSV-associated LRI or apnea (% RSV positive) among infants <1 year of age presenting to the ED during selected shoulder months. The total number of events will also be described.~To characterize the clinical outcomes and demographic data of infants presenting to the ED with RSV-associated LRI or apnea~To characterize the social burden (in the form of number of days lost from work by parent/ guardian) for these infants through 14 days after the index ED visit and through hospital discharge will also be described.~Based on a sample of cases collected in a cohort of patients enrolled at or near the peak of RSV disease during the traditional season, a comparison of the rate of RSV between shoulder and peak periods will be described.~To describe the overall rates of RSV-associated LRI or apnea based on the general ED statistics collected during the entire study period.
The primary objective of this study is to describe the incidence of RSV-associated LRI among infants <1 year of age presenting to the ED during selected shoulder months.