[Some respiratory viruses in the etiology of acute upper respiratory infections].

The viral etiology of acute respiratory diseases, determined in 107 children admitted to hospital during the 1966-1969 period, was confirmed in 36% of the cases by isolation of the viral agent and in 59% by serologic reactions. Parainfluenza viruses, especially of type 1 and 3, were encountered more often in the etiology of acute or obstructive laryngitis, and the syncytial respiratory virus in tracheobronchitis.