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John Duncan Grewar

Observed names: Grewar, John, Grewar, John Duncan, J Grewar, J. D. Grewar, J. Grewar, J.D. Grewar, JD Grewar, John D. Grewar, John D Grewar, John D. Grewar, John Grewar
Observed institutions: University of Cape Town, The University of Queensland, Mthatha General Hospital, Witshealth Consortium (Pty) Ltd. (South Africa), Department of Agriculture, Western Cape Government, University of Pretoria, University of California, Davis
ORCID: 0000-0002-4496-8051
Observed ORCID: 0000-0002-4496-8051
OpenAlex ID: A5038424895
African Horse Sickness Caused by Genome Reassortment and Reversion to Virulence of Live, Attenuated Vaccine Viruses, South Africa, 2004–2014
2016 · Camilla T. Weyer, John D. Grewar, et al. · Emerging infectious diseases · 76
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Novel Hendra Virus Variant Detected by Sentinel Surveillance of Horses in Australia
2022 · Edward J. Annand, Bethany A. Horsburgh, et al. · Emerging infectious diseases · 70
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Pathogens, disease, and the social-ecological resilience of protected areas
2016 · Alta De Vos, Graeme S. Cumming, et al. · Ecology and Society · 59
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The Molecular Epidemiology of Clade 2.3.4.4B H5N1 High Pathogenicity Avian Influenza in Southern Africa, 2021–2022
2023 · Celia Abolnik, Thandeka Phiri, et al. · Viruses · 47
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Quantifying network resilience: comparison before and after a major perturbation shows strengths and limitations of network metrics
2015 · Christine Moore, John Grewar, et al. · Journal of Applied Ecology · 31
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Molecular Analysis of the 2011 HPAI H5N2 Outbreak in Ostriches, South Africa
2012 · C Abolnik, A. J. Olivier, et al. · Avian Diseases · 29
Development of three triplex real-time reverse transcription PCR assays for the qualitative molecular typing of the nine serotypes of African horse sickness virus
2015 · Camilla T. Weyer, Christopher Joone, et al. · Journal of Virological Methods · 27
A social–ecological approach to landscape epidemiology: geographic variation and avian influenza
2015 · Graeme S. Cumming, Celia Abolnik, et al. · Landscape Ecology · 27
The 2011 outbreak of African horse sickness in the African horse sickness controlled area in South Africa
2013 · John D. Grewar, Camilla T. Weyer, et al. · Journal of the South African Veterinary Association · 24
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An epidemiological overview of the equine influenza epidemic in Great Britain during 2019
2022 · Fleur Whitlock, John Grewar, et al. · Equine Veterinary Journal · 22
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Quantitative Risk Assessment for African Horse Sickness in Live Horses Exported from South Africa
2016 · Evan S. Sergeant, John D. Grewar, et al. · PLoS ONE · 20
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Tracking Socioeconomic Vulnerability Using Network Analysis: Insights from an Avian Influenza Outbreak in an Ostrich Production Network
2014 · Christine Moore, Graeme S. Cumming, et al. · PLoS ONE · 20
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Surveillance of strangles in UK horses between 2015 and 2019 based on laboratory detection of Streptococcus equi
2021 · Abigail McGlennon, Andrew Waller, et al. · Veterinary Record · 19
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The economic impact of Bluetongue and other orbiviruses in sub-Saharan Africa, with special reference to Southern Africa.
2016 · John Duncan Grewar · PubMed · 18
An entry risk assessment of African horse sickness virus into the controlled area of South Africa through the legal movement of equids
2021 · John D. Grewar, Johann L. Kotze, et al. · PLoS ONE · 15
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Paratuberculosis in a domestic dog in South Africa
2017 · Michele A. Miller, Sewellyn C. Davey, et al. · Journal of the South African Veterinary Association · 15
Bacterial culture and susceptibility test results for clinical mastitis samples from Australia's subtropical dairy region
2023 · Charlotte Langhorne, Sara Horsman, et al. · Journal of Dairy Science · 14
Socio-economic impacts of working horses in urban and peri-urban areas of the Cape Flats, South Africa
2020 · Joanna N. De Klerk, Melvyn Quan, et al. · Journal of the South African Veterinary Association · 14
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Development of Reporting Guidelines for Animal Health Surveillance—AHSURED
2019 · Arianna Comin, John Grewar, et al. · Frontiers in Veterinary Science · 13
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Dynamics of African horse sickness virus nucleic acid and antibody in horses following immunization with a commercial polyvalent live attenuated vaccine
2017 · C.T. Weyer, J.D. Grewar, et al. · Vaccine · 12
Experimental infection of ostriches with H7N1 low pathogenic and H5N8 clade 2.3.4.4B highly pathogenic influenza A viruses
2021 · Celia Abolnik, Erich Ostmann, et al. · Veterinary Microbiology · 11
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Annual ryegrass toxicity in Thoroughbred horses in Ceres in the Western Cape Province, South Africa
2009 · J.D. Grewar, J.G. Allen, et al. · Journal of the South African Veterinary Association · 11
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Equestrian Road Safety in the United Kingdom: Factors Associated with Collisions and Horse Fatalities
2020 · Danica Pollard, John Duncan Grewar · Animals · 10
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A field investigation of an African horse sickness outbreak in the controlled area of South Africa in 2016
2018 · John Duncan Grewar, Camilla Theresa Weyer, et al. · Transboundary and Emerging Diseases · 10
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Assessing the potential of plains zebra to maintain African horse sickness in the Western Cape Province, South Africa
2019 · Thibaud Porphyre, John D. Grewar · PLoS ONE · 9
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Works count: 70
Citation count: 682
H-index: 15
I10-index: 24
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