Browsing Research Articles (Microbiology and Plant Pathology) by Author "Macdonald, Raynard"

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Development of a flow cytometric bead immunoassay and its assessment as a possible aid to potency evaluation of enterotoxaemia vaccines

Buys, Angela; Macdonald, Raynard; Crafford, Jan Ernst; Theron, Jacques (OpenJournals Publishing, 2014-05-10)

Enterotoxaemia, an economically important disease of sheep, goats and calves, is caused by systemic effects of the epsilon toxin produced by the anaerobic bacterium Clostridium perfringens type D. The only practical means ...
Study on the efficacy and safety of different antigens and oil formulations of infectious coryza vaccines containing an NAD-independent strain of Avibacterium paragallinarum

Dungu, B.; Brett, B.; Macdonald, Raynard; Deville, S.; Dupuis, L.; Theron, Jacques; Bragg, R.R. (Robert Richard) (Agricultural Research Council, ARC-OVI and the University of Pretoria, 2009-09)

The present study was designed to assess and compare three different formulations of the new Onderstepoort infectious coryza (IC) quadrivalent vaccine, which contain an NAD-independent strain of Avibacterium paragallinarum ...

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