Journal ArticleDOI
Isolation and identification of myxoviruses from domestic and imported avian species.
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During the past 15 months a velogenic strain of Newcastle disease virus and an exotic avian influenza-A virus were isolated from accessions received from several areas of the United States.Abstract:
During the past 15 months a velogenic strain of Newcastle disease virus and an exotic avian influenza-A virus were isolated from accessions received from several areas of the United States. In one instance, both viruses were isolated simultaneously from imported birds on one farm for ornamental birds. The influenza-A virus reacted in the hemagglutination-inhibition test with antisera prepared against the antigens of Chicken/Scotland/'59 and Duck/England/'62 and was possibly disseminated from one source.read more
Citations
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Book ChapterDOI
Newcastle Disease in Free-Living and Pet Birds
TL;DR: All of the approximately 8,000 species of birds seem to be susceptible to infection with Newcastle disease viruses (NDVs), so efforts are needed to protect birds from these viruses.
Journal ArticleDOI
Long-term monitoring for avian influenza viruses in wild bird species in Italy.
TL;DR: The objective was to demonstrate the ability of the Zooprofilattico Sperimentale to discriminate between the presence of phytochemical traces of E. coli and those of other species found in the Ozzano Emilia region.
Journal Article
Epidemiology and control of influenza.
TL;DR: The World Health Organization has set up the WHO Flunet for disseminating updates on the global influenza situation, current vaccines and antiviral drugs, and collaborating centres for updating the influenza vaccines and other research activities.
Journal ArticleDOI
Isolation of an influenza virus, similar to A/Port Chalmers/1/73 (H3N2) from a common murre at Sakhalin Island in U.S.S.R (Strain A/CommonMurre/Sakhalin/1/74)
TL;DR: An influenza A virus isolated from the cloaca of a common murre was characterized antigenically as H3N2 and was most closely related to the A/Port Chalmers/1/73 strain.
Journal ArticleDOI
Isolation of type-A influenza viruses from imported exotic birds.
TL;DR: From 1 January 1972 to 22 July 1972, 15 type-A influenza viruses were identified from 15 cases involving 12 different species of exotic birds being imported into southern California from outside the United States and some that had already been distributed to several locations there.
References
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Journal Article
Avian influenza A viruses.
TL;DR: The antigenic structure of eight strains of influenza A viruses of avian origin was investigated by haemagglutination inhibition, virus neutralization and strain-specific complement fixation, and problems connected with the classification and nomenclature of these viruses are discussed.
Journal ArticleDOI
Antigenic hybrids of influenza a viruses with surface antigens to order
TL;DR: Stable antigenic hybrids between mammalian and avian strains of influenza A viruses with the hemagglutinin from one parent and the neuraminidase antigen from the other parent can be made to order in the allantois-on-shell system.
Journal ArticleDOI
The "in vivo" production of "new" influenza A viruses. I. Genetic recombination between avian and mammalian influenza viruses.
TL;DR: These studies provide formal evidence for genetic interaction between mammalian and avian viruses in vivo and provide some evidence for the possible origin of human pandemic influenza viruses.
Journal ArticleDOI
The in vivo production of "new" influenza A viruses. II. In vivo isolation of "new" viruses.
TL;DR: In this article, the authors demonstrate that recombinant influenza A viruses can be selected in vivo using recombinant viruses and recombinant recombinant antigenic hybrids of different influenza A virus types.