Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-6-22
pubmed:abstractText
In order to determine the conditions for the optimum production of PR8 influenza virus in chick embryos, a study has been made of the róles of concentration of virus in the inoculum, temperature of incubation of infected embryos, length of time of incubation of infected embryos, and age of embryos at the time of inoculation. Relative amounts of virus in different preparations were measured indirectly by means of determinations of chicken red blood cell agglutination titers. Frozen infectious allantoic fluid which produced infection in chick embryos at a maximum dilution of 10(-7) was employed as a stock inoculum. Best results were obtained with an amount of stock inoculum of 0.1 cc. of a 10(-5) dilution, a temperature of incubation of 35 degrees C., a length of time of incubation of 36 to 48 hours, and with embryos brought to 10 or 11 days of age at 37 degrees C. or 9 or 10 days of age at 39 degrees . An uncontrolled factor arising from inherent variations in the properties of different embryos and different batches of embryos was discussed.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Feb
pubmed:issn
0022-1007
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
79
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
173-83
pubmed:dateRevised
2010-9-28
pubmed:year
1944
pubmed:articleTitle
A STUDY OF CONDITIONS FOR THE OPTIMUM PRODUCTION OF PR8 INFLUENZA VIRUS IN CHICK EMBRYOS.
pubmed:affiliation
Department of Animal and Plant Pathology of The Rockefeller Institute for Medical Research, Princeton, New Jersey.
pubmed:publicationType
Journal Article