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VetMed Resource

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Abstract

Serum from 87 cattle was tested before and 14 days after vaccination against F & M virus type O2 in the plaque method of the neutralization test. The neutralization titres were compared with the results of direct challenge of immunity performed 14 days after vaccination. In most of the 87 cattle, a ...

Author(s)
Rüting, E.; Seils, R.; Weyhe, D.; Benndorf, E.
Publisher
Loefflcr Inst., X-2201 Insel Riems, E. Germany,
Citation
Archiv fur Experimentelle Veterinarmedizin, 1969, 23, pp 827-838
Abstract

Type specific c.f. antibodies were demonstrated, by the technique of Marucci [V. B. 28, 2119], in 20 cattle experimentally infected with types O2, A or C of F. & M. disease virus. In 6 the titres were followed until they disappeared about 3 months after infection. After re-infection with a...

Author(s)
Korn, G.; Truszczriski, M.
Citation
Archiv fur Experimentelle Veterinarmedizin, 1959, 13, pp 103-115
Abstract

From the results of large-scale tests at Federal research institute for virus diseases at Tübingen, it was found that although 30% of immunized, challenged cattle developed primary vesicles, only 5% contracted generalized infection. Therefore the rule that generalization can be excluded if no...

Author(s)
Hecke, F.; Lorenz, R.
Citation
Monatshefte fur Tierheilkunde, 1960, 12, pp 229-242
Abstract

From the results of large-scale tests at Federal research institute for virus diseases at Tübingen, it was found that although 30% of immunized, challenged cattle developed primary vesicles, only 5% contracted generalized infection. Therefore the rule that generalization can be excluded if no...

Author(s)
Hecke, F.; Lorenz, R.
Citation
Monatshefte fur Tierheilkunde, 1960, 12, pp 199-209
Abstract

Bovine hyperimmune serum against type C virus was separated into six protein fractions by a combination of gel filtration with Sephadex G-200 and zone electrophoresis in a cellulose column. The serological activity of these fractions was determined by neutralization and indirect c.f. tests....

Author(s)
Olechnowitz, A. -F.
Citation
Archiv fur Experimentelle Veterinarmedizin, 1967, 21, pp 981-987
Abstract

Of 26 strains isolated directly from the tongue of infected cattle, 7 were not cytopathic for calf kidney cells, and 19 were cytopathic in different degrees. A strain undergoing passages in tongue epithelium according to Frenkel's method was initially non-pathogenic for calf kidney cells, but after ...

Author(s)
Bindrich, H.; Kuwert, E.
Citation
Archiv fur Experimentelle Veterinarmedizin, 1960, 14, pp 142-150
Abstract

Type A4 virus was passaged 450 times in kidney cultures of the pig, calf and mouse.
This greatly changed its virulence for ox, pig and infant mouse (the guineapig was not investigated), its cytopathic action on heterologous cultures, its contagiousness for ox and pig, and its immunizing properties. ...

Author(s)
Mayr, A.; Wittmann, G.
Citation
Zentralblatt fur Veterinarmedizin, 1960, 7, pp 829-840
Abstract

After serial passages on secondary pig-kidney-cell cultures, F. & M. disease virus multiplies to high cytopathogenic titres. This virus may be used as seeding virus for the culture procedure of Frenkel. The adaptation of the virus, which is cytopathogenic for pig kidney cells, to culture on...

Author(s)
Petermann, H. G.
Citation
Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene, 1959, 175, pp 63-66
Abstract

The indirect neutralization test enables formalin-inactivated F & M disease virus in vaccines from bovine material to be determined quantitatively. The test is only positive when the virus content per ml. of vaccine is above one million LD50. Below this concentration the test is positive only...

Author(s)
Wittamann, G.
Citation
Zentralblatt fur Veterinarmedizin, 1961, 8, pp 699-708
Abstract

The technique of extraction of F. & M.disease virus from bovine aphthous tissue with double distilled water and isotonic phosphate buffer was described. Extraction was repeated four times but the amount of virus isolated the fourth time was minimal. Details were given of the preparation and...

Author(s)
Kunter, E.
Citation
Archiv fur Experimentelle Veterinarmedizin, 1958, 12, pp 792-801

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