Prozesky, L.Bigalke, R.D.2017-11-132017-11-1320171987Prozesky, L 1987, 'Heartwater: the morphology of Cowdria ruminantium and its staining characteristic in the vertebrate host and in vitro', Onderstepoort Journal of Veterinary Research, vol. 54, no. 3, pp. 173-176.0330-2465http://hdl.handle.net/2263/63114The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.The morphology of Cowdria ruminantium is described and its staining characteristics in the vertebrate host and in vitro are summarized. Morphologically, the organisms are characterized in the cytoplasm of endothelial cells, macrophages and reticulo-endothelial cells. Based on the morphology of the internal structure of the organisms, elementary (electron-dense), intermediate and reticulate bodies are identified. Each organism is surrounded by a double membrane and a "capsule" is evident around a few organisms in vitro. Usually, only organisms of the same form are found within a particular vacuole, although mixed colonies are described in the in vitro studies.en©ARC - Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original). ©University of Pretoria. Dept. of Library Services (digital).Veterinary medicineVeterinary medicine -- South AfricaArticle