Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1970-1974  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Archives of virology 29 (1970), S. 50-62 
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Single cycle and multiple cycle growth of type 2 parainfluenza virus in stable amnion cells was examined. Hemadsorption plaque counts constituted a reliable method for quantitative estimation of infective virus. Virus from cells grown in serum-free medium supplemented with lactalbumin hydrolysate (LH) gave a consistently lower p.f.u./hemagglutinin ratio than virus from cells grown in medium containing calf serum. Infectivity titers, however, were the same in all media at the end of a single cycle of growth. Factors are discussed which might bear on the effect of LH on the production of virus in the presence or absence of calf serum. An unstable variant of type 2 parainfluenza virus is described which is characterized by the formation of hemadsorption plaques larger than those produced by 90% of the particles in stock preparations of virus. A strain of type 2 parainfluenza virus (clone 13) free of the large plaque variant was derived from stock cultures by limiting dilution and plaque purification techniques.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...