Figure 1From: Persistent recurring wheezing in the fifth year of life after laboratory-confirmed, medically attended respiratory syncytial virus infection in infancy Relationship between respiratory syncytial virus infection encounters in year 1 with prevalence of recurrent wheezing in years 2 through 5 of life. Encounter types are hierarchical (prolonged hospitalization supersedes hospitalization, which supersedes outpatient encounter only) and mutually exclusive. RSV=respiratory syncytial virus.Back to article page