Increased pathogenicity of an Ehrlichia-like agent after passage through Amblyomma hebraeum : a preliminary report
Loading...
Date
Authors
Du Plessis, J.L.
Journal Title
Journal ISSN
Volume Title
Publisher
Published by the Government Printer, Pretoria.
Abstract
After being passaged through 3 generations of Amblyomma hebraeum, an Ehrlichia-like agent isolated from an adult Hyalomma truncatum female became more pathogenic and elicited a disease in sheep indistinguishable from heartwater. Cross-immunity between this agent and several stocks of Cowdria ruminantium and high levels of antibody elicited by the agent against 2 stocks of C. ruminantium in the indirect fluorescent antibody test, confirmed its close relationship to Cowdria.
Description
The 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.
Keywords
Veterinary medicine
Sustainable Development Goals
Citation
Du Plessis, JL 1990, 'Increased pathogenicity of an Ehrlichia-like agent after passage through Amblyomma hebraeum : a preliminary report’, Onderstepoort Journal of Veterinary Research, vol. 57, no. 4, pp. 233-237.