John Duncan Grewar
John Duncan Grewar
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African horse sickness caused by genome reassortment and reversion to virulence of live, attenuated vaccine viruses, South Africa, 2004–2014
CT Weyer, JD Grewar, P Burger, E Rossouw, C Lourens, C Joone, ...
Emerging infectious diseases 22 (12), 2087, 2016
Pathogens, disease, and the social-ecological resilience of protected areas
A De Vos, GS Cumming, DHM Cumming, JM Ament, J Baum, ...
Ecology and Society 21 (1), 2016
Molecular analysis of the 2011 HPAI H5N2 outbreak in ostriches, South Africa
C Abolnik, AJ Olivier, J Grewar, S Gers, M Romito
Avian Diseases 56 (4s1), 865-879, 2012
Novel Hendra virus variant detected by sentinel surveillance of horses in Australia
EJ Annand, BA Horsburgh, K Xu, PA Reid, B Poole, MC De Kantzow, ...
Emerging infectious diseases 28 (3), 693, 2022
Quantifying network resilience: comparison before and after a major perturbation shows strengths and limitations of network metrics
C Moore, J Grewar, GS Cumming
Journal of Applied Ecology 53 (3), 636-645, 2016
Development of three triplex real-time reverse transcription PCR assays for the qualitative molecular typing of the nine serotypes of African horse sickness virus
CT Weyer, C Joone, CW Lourens, MS Monyai, O Koekemoer, JD Grewar, ...
Journal of virological methods 223, 69-74, 2015
A social–ecological approach to landscape epidemiology: geographic variation and avian influenza
GS Cumming, C Abolnik, A Caron, N Gaidet, J Grewar, E Hellard, ...
Landscape Ecology 30, 963-985, 2015
The 2011 outbreak of African horse sickness in theAfrican horse sickness controlled area in South Africa
JD Grewar, P Koen, S Davey, D Visser, E Russouw, G Buhrmann, ...
Journal of the South African Veterinary Association 84 (1), 1-7, 2013
Tracking socioeconomic vulnerability using network analysis: insights from an avian influenza outbreak in an ostrich production network
C Moore, GS Cumming, J Slingsby, J Grewar
PLoS One 9 (1), e86973, 2014
The economic impact of Bluetongue and other orbiviruses in sub-Saharan Africa, with special reference to Southern Africa.
JD Grewar
Quantitative risk assessment for African horse sickness in live horses exported from South Africa
ES Sergeant, JD Grewar, CT Weyer, AJ Guthrie
PLoS One 11 (3), e0151757, 2016
Paratuberculosis in a domestic dog in South Africa
MA Miller, SC Davey, LS Van Helden, F Kettner, SM Weltan, R Last, ...
Journal of the South African Veterinary Association 88 (1), 1-5, 2017
Development of reporting guidelines for animal health surveillance—AHSURED
A Comin, J Grewar, G Schaik, H Schwermer, J Paré, F El Allaki, JA Drewe, ...
Frontiers in Veterinary Science 6, 426, 2019
Equestrian road safety in the United kingdom: factors associated with collisions and horse fatalities
D Pollard, JD Grewar
Animals 10 (12), 2403, 2020
Dynamics of African horse sickness virus nucleic acid and antibody in horses following immunization with a commercial polyvalent live attenuated vaccine
CT Weyer, JD Grewar, P Burger, C Joone, C Lourens, NJ MacLachlan, ...
Vaccine 35 (18), 2504-2510, 2017
Assessing the potential of plains zebra to maintain African horse sickness in the Western Cape Province, South Africa
T Porphyre, JD Grewar
PloS one 14 (10), e0222366, 2019
A field investigation of an African horse sickness outbreak in the controlled area of South Africa in 2016
JD Grewar, CT Weyer, GJ Venter, LS Van Helden, P Burger, AJ Guthrie, ...
Transboundary and emerging diseases 66 (2), 743-751, 2019
Surveillance of strangles in UK horses between 2015 and 2019 based on laboratory detection of Streptococcus equi
A McGlennon, A Waller, K Verheyen, J Slater, J Grewar, D Aanensen, ...
Veterinary Record 189 (12), no-no, 2021
An entry risk assessment of African horse sickness virus into the controlled area of South Africa through the legal movement of equids
JD Grewar, JL Kotze, BJ Parker, LS Van Helden, CT Weyer
Plos one 16 (5), e0252117, 2021
Equine encephalosis in Thoroughbred foals on a South African stud farm: research communication
JD Grewar, PN Thompson, CW Lourens, AJ Guthrie
Onderstepoort Journal of Veterinary Research 82 (1), 1-4, 2015
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