Please be advised that the site will be down for maintenance on Sunday, September 1, 2024, from 08:00 to 18:00, and again on Monday, September 2, 2024, from 08:00 to 09:00. We apologize for any inconvenience this may cause.
dc.contributor.author | McIntosh, B.M.![]() |
|
dc.contributor.author | Haig, D.A.![]() |
|
dc.contributor.author | Alexander, R.A.![]() |
|
dc.contributor.editor | Alexander, R.A. | |
dc.contributor.editor | Clark, R. | |
dc.contributor.editor | Louw, J.G. | |
dc.contributor.editor | De Kock, V.E. | |
dc.date.accessioned | 2017-01-30T13:22:40Z | |
dc.date.available | 2017-01-30T13:22:40Z | |
dc.date.created | 2016 | |
dc.date.issued | 1954 | |
dc.description | The articles have been scanned in colour with a HP Scanjet 5590; 300dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format. | en_ZA |
dc.description.abstract | From infected material obtained from various herds virus has been isolated in several instances in developing hen's eggs, and in one instance also in mice. The strain which could be propagated in both mice and eggs was taken 25 generations by intracerebral passage in mice. In early passages day-old mice were used but later passage was continued in adult mice. In these, mortality occurred regularly after three to four days. Gradocol membrane filtration indicated that the particle diameter was Jess than 100 mµ. In developing hen's eggs this strain was propagated for twelve generations by chorio-allantoic membrane passage. Definite lesions on the membrane were observed and occasional embryos died. Subsequent passages were made by the injection of infected embryo material into the yolk sac. In this way the virus was readily maintained a further ten generations, at which stage it regularly killed all embryos. Cows and heifers infected with material from both the mouse and egg propagated lines of this strain showed definite, though mild, symptoms of vaginitis. The possibility of various forms of vaginitis occurring in bovines as well as the relation of this virus to these conditions is discussed. | en_ZA |
dc.identifier.citation | McIntosh, BM, Haig, DA & Alexander, RA 1954,'Isolation in mice and embryonated hen's eggs of a virus associated with vaginitis of cattle’, Onderstepoort Journal of Veterinary Research, vol. 26, no. 4, pp. 479-484. | en_ZA |
dc.identifier.issn | 0330-2465 | |
dc.identifier.uri | http://hdl.handle.net/2263/58690 | |
dc.language.iso | en | en_ZA |
dc.publisher | Published by The Government Printer, Pretoria | en_ZA |
dc.rights | © 1954 ARC - Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original). © 2016 University of Pretoria. Dept. of Library Services (digital). | en_ZA |
dc.subject | Veterinary medicine | en_ZA |
dc.subject.lcsh | Veterinary medicine -- South Africa | |
dc.title | Isolation in mice and embryonated hen's eggs of a virus associated with vaginitis of cattle | en_ZA |
dc.type | Article | en_ZA |