Respiratory syncytial virus (RSV) plays an important role in acute bronchiolitis, which is life threatening in some infants. We investigated the epidemiology of RSV acute bronchiolitis in children less than 3 years old in northern Japan. From April 1991 to March 1993, 162 infants with acute bronchiolitis were hospitalized in our pediatric wards. The diagnosis of RSV acute bronchiolitis was based on the typical clinical manifestations and the presence of RSV antigen in their nasopharyngeal specimens or the rise of the RSV antibody titer. 124 out of 162 patients (76.5%) were diagnosed as having RSV acute bronchiolitis. 43.5% of patients with RSV acute bronchiolitis were 6 months old or less. The epidemic of RSV acute bronchiolitis commenced in October, peaked in December and ended in summer. RSV is quite prevalent in infants with acute bronchiolitis in northern Japan.
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| http://dx.doi.org/10.1111/j.1442-200x.1994.tb03203.x | DOI Listing |
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