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dc.contributor.author | Neitz, W.O.![]() |
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dc.contributor.author | Jansen, B.C.![]() |
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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 | 2017-01-30T13:06:13Z | |
dc.date.available | 2017-01-30T13:06:13Z | |
dc.date.created | 2016 | |
dc.date.issued | 1956 | |
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 | The morphological similarity between the members of the genera Theileria and Gonderia in domestic animals makes their differentiation extremely difficult. In making a differential diagnosis veterinarians and zoologists often are compelled to take the pathogenicity and the epizootology into consideration. In doubtful cases it may even be necessary to resort to in vivo cross-immunity tests before a final identification can be made. From this it becomes evident that a great deal of work will have to be done before the "intermediate stages" of the Theileria spp. referred to by Du Toit (1930) can be identified. From the observations on the artificial transmission of East Coast fever (Theiler, 1912; Theiler and Du Toit, 1929) and of Tzaneen disease (Gonderia mutans infection) (De Kock, Van Heerden, Du Toit and Neitz, 1937) it becomes apparent that the infectious agents cannot be maintained by serial passages as has been possible in the case of Gonderia annulata (Sergent, Donatien, Parrot and Lestoquard, 1945). The opinion is expressed that the undetermined species referred to by Du Toit (1930) may behave in a similar way. For systematic studies, therefore, it will be necessary to determine the vectors of these parasites. From this it is obvious that many years will elapse before the classification of this group of micro-organisms can be placed on a permanent basis. | en_ZA |
dc.identifier.citation | Neitz, WO & Jansen, BC 1956, 'A discussion on the classification of the Theileridae', Onderstepoort Journal of Veterinary Research, vol. 27, no. 1, pp. 7-18. | en_ZA |
dc.identifier.issn | 0330-2465 | |
dc.identifier.uri | http://hdl.handle.net/2263/58683 | |
dc.language.iso | en | en_ZA |
dc.publisher | Pretoria : The Government Printer | en_ZA |
dc.rights | © 1956 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 | A discussion on the classification of the Theileridae | en_ZA |
dc.type | Article | en_ZA |