Alexander, R.A.University of South Africa2014-08-182014-08-182013-12-041934http://hdl.handle.net/2263/41409TypescriptIncludes bibliographical references.Thesis (DVSc) - University of South Africa, 1934.Pt. 1. Neurotropic fixation -- pt. 2. Some physical and chemical properties -- pt. 3. The intracerebral protection test and its application to the study of immunity -- pt. 4. The pathogenesis in horses.[147 leaves] in various pagings : ill., tablesPDFenCopyright electronic version: ©2013, University of Pretoria; Copyright original printed version: ©1920-1950, University of South Africa.HorsesHorsesicknessPathogenesisNeurotropic fixationVeterinary medicine -- South AfricaAfrican horse sicknessHorses -- Virus diseasesAfrican horse sickness virusOrbivirus infections in animalsThesis