id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-009144-3slh1nbk	Jacobs, J.W.	RESPIRATORY SYNCYTIAL AND OTHER VIRUSES ASSOCIATED WITH RESPIRATORY DISEASE IN INFANTS	1971-05-01		.txt	text/plain	3288	218	60	Diagnosis by virus isolation and serology was attempted in 377 cases of respiratory-tract infection in infants under one year of age admitted to hospital during two winters. THERE have been few intensive studies of respiratoryvirus infections of infants.1-5 To prevent these infections, it is necessary to know which viruses cause the most severe illness and whether maternal antibody plays any part in their prevention. We report here the results of a survey of respiratory-virus infections in infants under one year of age in hospital. In this survey, as in others, R.s. virus was the commonest cause of respiratory illness requiring admission at this age (40°0), and the illnesses were more severe than those associated with other viruses (table iv). 23 Effect of Maternal Antibody The few parainfluenza virus infections observed in this survey occurred only in infants more than four months of age.	./cache/cord-009144-3slh1nbk.txt	./txt/cord-009144-3slh1nbk.txt