Citation: Bjh. Barnard et al., SOME EPIDEMIOLOGIC AND ECONOMIC-ASPECTS OF A BLUETONGUE-LIKE DISEASE IN CATTLE IN SOUTH-AFRICA - 1995 96 AND 1997/, Onderstepoort journal of veterinary research, 65(3), 1998, pp. 145-151
Authors:
VERWOERD DJ
GERDES GH
OLIVIER A
WILLIAMS R
Citation: Dj. Verwoerd et al., EXPERIMENTAL-INFECTION OF VACCINATED SLAUGHTER OSTRICHES WITH VIRULENT NEWCASTLE-DISEASE VIRUS, Onderstepoort journal of veterinary research, 64(3), 1997, pp. 213-216
Citation: Jc. Stroebel et Gh. Gerdes, BOVINE PAPULAR STOMATITIS - AN INCIDENTAL FINDING, Journal of the South African Veterinary Medical Association, 67(3), 1996, pp. 104-104
Authors:
VORSTER JH
TRICHARD CJV
JACOBSZ EP
DEWET SC
GERDES GH
HENTON MM
PROZESKY L
Citation: Jh. Vorster et al., INFECTIOUS KERATOCONJUNCTIVITIS IN SHEEP IN SOUTHERN AFRICA ASSOCIATED WITH AN UNIDENTIFIED MYCOPLASMA SP, Journal of the South African Veterinary Medical Association, 67(1), 1996, pp. 5-7
Authors:
GROBLER DG
RAATH JP
BRAACK LE
KEET DF
GERDES GH
BARNARD BJH
KRIEK NPJ
JARDINE J
SWANEPOEL R
Citation: Dg. Grobler et al., AN OUTBREAK OF ENCEPHALOMYOCARDITIS-VIRUS INFECTION IN FREE-RANGING AFRICAN ELEPHANTS IN THE KRUGER-NATIONAL-PARK, Onderstepoort journal of veterinary research, 62(2), 1995, pp. 97-108
Authors:
VORSTER JH
BASTIANELLO SS
VANHALDEREN A
OTTO JH
BAY R
HENTON MM
GERDES GH
Citation: Jh. Vorster et al., THE OCCURRENCE OF LESIONS RESEMBLING PORCINE CEREBROSPINAL ANGIOPATHYIN ADULT SOWS IN SOUTHERN AFRICA, Journal of the South African Veterinary Medical Association, 65(4), 1994, pp. 149-149
Authors:
VANDERLUGT JJ
GERDES GH
HENTON MM
REBOLLAR LML
Citation: Jj. Vanderlugt et al., GUIDELINES FOR ESTABLISHING A DIAGNOSIS IN CALF DIARRHEA, Journal of the South African Veterinary Medical Association, 65(1), 1994, pp. 4-4
Citation: Fw. Huchzermeyer et al., HEPATITIS IN FARMED HATCHLING NILE CROCODILES (CROCODYLUS-NILOTICUS) DUE TO CHLAMYDIAL INFECTION, Journal of the South African Veterinary Medical Association, 65(1), 1994, pp. 20-22
Citation: Gh. Gerdes et Lm. Pieterse, THE ISOLATION AND IDENTIFICATION OF POTCHEFSTROOM VIRUS - A NEW MEMBER OF THE EQUINE ENCEPHALOSIS GROUP OF ORBIVIRUSES, Journal of the South African Veterinary Medical Association, 64(3), 1993, pp. 131-132
Citation: Jh. Vorster et Gh. Gerdes, BREDA VIRUS-LIKE PARTICLES IN CALVES IN SOUTH-AFRICA, Journal of the South African Veterinary Medical Association, 64(2), 1993, pp. 58-58
Citation: Gh. Gerdes, 2 VERY SMALL VIRUSES - A PRESUMPTIVE IDENTIFICATION, Journal of the South African Veterinary Medical Association, 64(1), 1993, pp. 2-2
Citation: Eh. Venter et al., DETECTION OF BLUETONGUE VIRUS-RNA IN CELL-CULTURES AND IN THE CENTRAL-NERVOUS-SYSTEM OF EXPERIMENTALLY INFECTED MICE USING IN-SITU HYBRIDIZATION, Onderstepoort journal of veterinary research, 60(1), 1993, pp. 39-45