Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 2
pubmed:dateCreated
1980-10-21
pubmed:abstractText
A comparative study on the infectivity and biological activities of parainfluenza virus type 2 revealed that one strain (Toshiba) showed c.p.e. with cell fusion and produced plaques in Vero cells, an established line of African green monkey kidney cells. Another strain (62-M786) of this virus, however, showed minimum c.p.e. and produced almost no plaques in Vero cells, although c.p.e. appeared and plaques were observed following addition of trypsin. The infectivity titre of the latter strain, estimated by 50% tissue culture infectious doses (TCID50), was increased 10 times and plaque counts more than 6400 times by addition of an adequate concentration of trypsin; however, trypsin did not affect the infectivity of the former strain. Trypsin also increased the haemolytic activity of strain 62-M786 but not that of the Toshiba strain. These results show that the two isolates of parainfluenza virus type 2 were affected very differently by trypsin as regards infectivity, cell fusion and haemolytic activity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0022-1317
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
407-10
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Influence of trypsin on the infectivity and biological properties or parainfluenza type 2 type 2 (croup-associated) virus in Vero cells.
pubmed:publicationType
Journal Article, Comparative Study