Results 131 to 140 of about 15,087 (170)

Neuraminidase Activity of a Bovine Strain of Parainfluenza 3 Virus

Nature, 1967
IN a discussion of the taxonomic implications of the term “myxovirus”, it has been suggested that it is the property of myxophily and not morphology which establishes a true member of the myxovirus group of viruses. It was further suggested that some bovine strains of parainfluenza 3 (PI 3) virus lack the enzyme neuraminidase and that, because their ...
P S, Dawson, D S, Patterson
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Pathogenesis of bovine parainfluenza 3 virus infection in organ cultures

Journal of Comparative Pathology, 1969
Abstract Two strains of bovine parainfluenza 3 virus were found to replicate in organ cultures of neonatal calf trachea infected in vitro. Growth of virus was followed for a period of more than seven weeks and the cytopathology observed in parallel. When a virus inoculum of 103 TCID50 per ml.
R S, Campbell, H, Thompson, E, Leighton, W, Penny   +3 more
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Preliminary Studies on the Development of a Bovine Parainfluenza 3 Virus Vaccine

Research in Veterinary Science, 1968
SUMMARY The propagation of hovine parainfluenza 3 (PI3) virus, and the preparation of a PI3 vaccine inactivated with perchlorethylene and adsorbed to aluminium hydroxide, is described. The vaccine stimulated a satisfactory haemagglutination-inhibition antibody response in hamsters, guinea-pigs and colostrum-deprived calves.
G W, Tribe, A D, Kanarek, G, White
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Experimentally Induced Infection of in Utero Bovine Fetuses with Bovine Parainfluenza 3 Virus

American Journal of Veterinary Research, 1972
SUMMARY Bovine parainfluenza 3 (pi-3) virus was isolated from an aborted bovine fetus, and the recovered agent was subsequently inoculated in 6 bovine fetuses at midgestation. Of the 6 fetuses, 4 were surgically removed 6, 10, 20, and 35 days after inoculation and 2 died and were aborted 46 and 56 days after inoculation.
B L, Swift, P C, Kennedy
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Cytotoxicity of bovine leucocytes for parainfluenza type-3 virus-infected cells

Veterinary Immunology and Immunopathology, 1992
The cytotoxic effect of bovine neutrophils, alveolar macrophages, monocytes and lymphocytes for parainfluenza type-3 (PI-3) virus-infected cells in 51chromium-release assays is described. Specific lysis of virus-infected target cells with PI-3 virus antibody and complement was first observed 8 h after infection coincident with the appearance of ...
H E, Bradford, B M, Adair, M S, McNulty, J C, Foster   +3 more
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Impaired function of bovine alveolar macrophages infected with parainfluenza-3 virus

American Journal of Veterinary Research, 1985
SUMMARY Bovine alveolar macrophages (bam) were harvested from nonsedated cattle, adhered to glass or plastic surfaces, and infected with parainfluenza-3 (pi-3) virus at a multiplicity of infection of 10. Control and pi-3 virus-infected bam were compared at 24-hour intervals up to 168 hours for their ability to phagocytize antibody-coated sheep ...
D, Liggitt, L, Huston, R, Silflow, J, Evermann, E, Trigo   +4 more
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In vitro stimulation of bovine circulating lymphocytes by parainfluenza type 3 virus

Research in Veterinary Science, 1977
Bovine circulating lymphocytes from animals sero-positive to parainfluenza-3 virus (PIV-3) could be stimulated by PIV-3 antigen in a microculture system. A semiautomatic multiple sample harvester was used to collect the lymphocytes from the microplates. Ultraviolet-killed PIV-3 induced better stimulation values than formalin or heat-treated virus.
K, Johnson, B, Morein
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Interference between bovine parainfluenza 3 virus and a street strain of rabies virus in rabbits

Archiv f�r die gesamte Virusforschung, 1970
Rabbits proved to be protected against rabies (street virus) by the intravenous injection of bovine parainfluenza type 3 (BPI3) virus either 24 hours before or 10 minutes after the intradermal inoculation with a street strain of rabies virus. BPI3 virus given 24 hours after rabies infection had no effect upon the course of rabies infection.
A, Fayaz, A, Afshar, M, Bahmanyar
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Growth of Bovine Parainfluenza-3 Virus in Chick Tissues growing on Polythene

Nature, 1964
A BOVINE strain of myxovirus parainfluenza-3 was first isolated by Reisinger et al.1 in cultures of embryonic bovine kidney cells. Recently, isolates have been made by intra-amniotic inoculation of 14-day-old chick embryos2; but evidence of a successful isolation was only obtained by titration of the amniotic fluids on embryonic bovine kidney cells.
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Antibody and complement-mediated cytotoxicity for bovine parainfluenza-3 virus-infected cells

American Journal of Veterinary Research, 1984
SUMMARY An antibody-complement-mediated cytotoxicity assay was employed to determine whether susceptible host cells infected with bovine parainfluenza-3 virus could be destroyed by the humoral immune mechanism. The cytotoxicity assay yielded 21.5% to 76.9% specific release of 51Cr with sera collected from calves 28 days after inoculation with the virus.
A, Hussain, S B, Mohanty
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