impact of respiratory syncytial virus infection as a cause of lower respiratory tract infection in children younger than 3 years of age in japan. | respiratory syncytial virus (rsv) is the most important viral pathogen for lower respiratory tract infection (lri) in infants and children. an rsv-specific monoclonal antibody has been developed to provide prophylaxis against rsv associated lri (rsv-lri). the objective of this study was to determine the impact of rsv as a cause of lri in children younger than 3 years of age to provide data to aide in the implementation of forthcoming prophylaxis against rsv. | 2002 | 12099731 |