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The testing and modification of a commercially available transport medium for the transportation of pure cultures of Haemophilus paragallinarum for serotyping
2004
Bragg, R.R. | Jansen van Rensburg, P. | Van Heerden, E. | Albertyn, J. (Free State Univ., Bloemfontein (South Africa). Microbial, Biochemical and Food Biotechnology Dept.)
Development of solid phase antigen for indirect ELISA for the detection of specific antibody responses to infection with Newcastle disease virus
2002
Sahle, M. (National Animal Health Research Center, Sebeta (Ethiopia)) | Burgess, G.W.
Virulence of South African isolates of Haemophilus paragallinarum. Part 1: NAD-dependent field isolates
2002
Bragg, R.R. (Free State Univ., Bloemfontein (South Africa). Microbiology and Biochemistry Dept.)
Isolation of serovar C-3 Haemophilus paragallinarum from Zimbabwe: A further indication of the need for the production of vaccines against infectious coryza containing local isolates of H. paragallinarum
2002
Bragg, R.R. (Free State Univ., Bloemfontein (South Africa). Microbiology and Biochemistry Dept.)
Host range, survival in dead hosts, cryopreservation, periodicity and morphology of Plasmodium durae Herman in experimental infections
1996
Huchzermeyer, F.W. (Agricultural Research Council, Onderstepoort (South Africa). Onderstepoort Veterinary Inst.)
Changes in the incidences of the different serovars of Haemophilus paragallinarum in South Africa: a possible explanation for vaccination failures
1996
Bragg, R.R. | Coetzee, L. (Pretoria Univ., Onderstepoort (South Africa). Dept. of Poultry Diseases) | Verschoor, J.A.
Evidence of possible evasion of protective immunity by NAD-independent isolates of Haemophilus paragallinarum in poultry
2004
Bragg, R.R. (Free State Univ., Bloemfontein (South Africa). Microbial, Biochemical and Food Biotechnology Dept.)
Virulence of South African isolates of Haemophilus paragallinarum. Part 2: Naturally occuring NAD-independent field isolates
2002
Bragg, R.R. (Free State Univ., Bloemfontein (South Africa). Microbiology and Biochemistry Dept.)
Confirmation that PCR can be used to identify NAD-dependent and NAD-independent Haemophilus paragallinarum isolates
1999
Miflin, J.K. (Animal Research Inst., Moorooka (Australia)) | Chen, X. | Bragg, R.R. | Welgemoed, J.M. | Greyling, J.M. | Horner, R.F. | Blackall, P.J.
Effects of growth conditions and incubation times on the expression of antigens of Haemophilus paragallinarum which are detected by monoclonal antibodies
1997
Bragg, R.R. | Coetzee, L. (Pretoria Univ., Onderstepoort (South Africa). Dept. of Poultry Diseases) | Verschoor, J.A.
