[Epidemic cases of respiratory syncytial virus infection in a nursery. 1. Epidemiological and clinical studies].
D003428:Cross Infection / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology*; D007564:Japan; D012136:Respiratory Syncytial Viruses; D012141:Respiratory Tract Infections / Q000453:epidemiology*