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THE present study was designed to investigate the viral etiology of respiratory illness in infants and young children. One of the technics employed for isolation of the virus was the recently described hemadsorption method of Vogel and Shelokov.1 , 2 With this technic, several strains of Asian influenza A virus were isolated, but the majority of agents recovered were not influenza A, B or C. The noninfluenza agents appear to comprise two newly recognized groups of myxoviruses,3 probably responsible for a segment of common respiratory illnesses in children. Their properties, serologic characterization and the evidence bearing upon their relation to disease will . . .
Chanock et al. (1958) studied this question.