Scott, G.R.Bigalke, R.D.2017-11-132017-11-1320171987Scott, GR 1987, 'The taxonomic status of the causative agent of heartwater', Onderstepoort Journal of Veterinary Research, vol. 54, no. 3, pp. 257-260.0330-2465http://hdl.handle.net/2263/63130The 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.A fresh pragmatic classification of the rickettsias has been derived by applying the simplest techniques of numerical taxonomy. One order, the Rickettsiales, containing 3 families, the Rickettsiaceae, Phagosomaphilaceae, and the Bartonellaceae (?) is proposed. Cowdria is classified as a genus along with Chlamydia, Coxiella and Anaplasma in the tribe Chlamydieae in the family Phagosomaphilaceae.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