2024

• Boyd-weetman, J., Alam, L., Dhungyel, O., Muir, W. (2024). Perceptions of Sheep Farmers and District Veterinarians towards Sheep Disease Management in New South Wales, Australia. Animals, 14(8).

2023

• Collins, A., Collins, D., Dhungyel, O. (2023). The virulence of Dichelobacter nodosus, measured by the elastase test, is an important predictor for virulent footrot diagnosis in New South Wales sheep flocks. Australian Veterinary Journal, 101(12), 522-530. [More Information]

2022

• Smith, K., Whittington, R., Green, A., Dhand, N., Moses, A., Grove, A., Thane, T., Dhungyel, O. (2022). A survey to understand farmers' perceptions and risk factors for hoof diseases including footrot in sheep in New South Wales, Australia. Frontiers in Veterinary Science, 9, 1000295-1-1000295-13. [More Information]
• Smith, K., Whittington, R., Corrigan, M., Edmonstone, B., Cronin, N., Dhand, N., Dhungyel, O. (2022). Efficacy of bivalent fimbrial vaccines to control and eliminate intermediate forms of footrot in sheep. Australian Veterinary Journal, 100(3), 121-129. [More Information]
• Bhardwaj, V., Dhungyel, O., de Silva, K., Dhand, N., Whittington, R. (2022). The role of foot conformation in susceptibility of Merino sheep to footrot. Small Ruminant Research, 217, Article number 106850-1-Article number 106850-6. [More Information]

2021

• McPherson, A., Whittington, R., Hall, E., Cook, E., Jones, J., Ang, Y., McTavish, E., Dhungyel, O. (2021). A comparison of multivalent and bivalent vaccination strategies for the control of virulent ovine footrot. Vaccine, 39(12), 1736-1745. [More Information]
• McPherson, A., Whittington, R., Kennan, R., Rood, J., Dhungyel, O. (2021). A pasture-based experimental infection model for footrot in sheep. Small Ruminant Research, 195, 1-9. [More Information]
• Smith, K., Rosser, M., McPherson, A., Whittington, R., Dhand, N., Dhungyel, O. (2021). The severity of footrot lesions induced by aprV2-positive strains of Dichelobacter nodosus varies between strains. Australian Veterinary Journal, 99(7), 279-287. [More Information]

2019

• Begg, D., Dhungyel, O., Naddi, A., Dhand, N., Plain, K., de Silva, K., Purdie, A., Whittington, R. (2019). The immunogenicity and tissue reactivity of Mycobacterium avium subsp paratuberculosis inactivated whole cell vaccine is dependent on the adjuvant used. Heliyon, 5(6), 1-8. [More Information]
• McPherson, A., Dhungyel, O., Whittington, R. (2019). The microbiome of the footrot lesion in Merino sheep is characterized by a persistent bacterial dysbiosis. Veterinary Microbiology, 236, 1-10. [More Information]

2018

• Bhardwaj, V., Dhungyel, O., de Silva, K., Dhand, N., Whittington, R. (2018). An objective method for assessment of foot conformation in sheep. Small Ruminant Research, 167, 22-28. [More Information]
• McPherson, A., Dhungyel, O., Whittington, R. (2018). Detection and serogrouping of dichelobacter nodosus infection by use of direct PCR from lesion swabs to support outbreak-specific vaccination for virulent footrot in sheep. Journal of Clinical Microbiology, 56(4), 1-12. [More Information]

2017

• McPherson, A., Dhungyel, O., Whittington, R. (2017). Evaluation of Genotypic and Phenotypic Protease Virulence Tests for Dichelobacter nodosus Infection in Sheep. Journal of Clinical Microbiology, 55(5), 1313-1326. [More Information]
• van Breda, L., Dhungyel, O., Ginn, A., Iredell, J., Ward, M. (2017). Pre- and post-weaning scours in southeastern Australia: A survey of 22 commercial pig herds and characterisation of Escherichia coli isolates. PloS One, 12(3), 1-14. [More Information]

2016

• Dhungyel, O., Whittington, R. (2016). Advances in control, prevention and eradication of footrot in small ruminants. The Australian Sheep Veterinarians Conference, N/a: N/A.
• Whittington, R., Dhungyel, O., McPherson, A. (2016). Diagnostic advances in ovine footrot. The Australian Sheep Veterinarians Conference, N/a: N/A.
• van Breda, L., Ginn, A., Dhungyel, O., Partridge, S., Iredell, J., Ward, M. (2016). Escherichia coli in Australian piglets – the hidden carriers of important resistance genes. IV International Conference of Antibiotic Resistance, N/A: N/A.

2015

• van Breda, L., Ginn, A., Dhungyel, O., Iredell, J., Ward, M. (2015). A snapshot survey of antibiotic resistance in Escherichia coli isolated from pre- and post-weaned piglets in Australia. Australasian Pig Science Association, Werribee: Australian Pig Association.
• van Breda, L., Ginn, A., Dhungyel, O. (2015). A snapshot survey: E. coli disease and antibiotic resistance in Australian piglets (oral presentation). Australasian Pig Science Association, Werribee: Australian Pig Association.
• McPherson, A., Dhungyel, O., Ward, M. (2015). Comparison of recto-anal mucosal swab and faecal culture for the detection of Escherichia coli O157 and identification of super-shedding in a mob of Merino sheep. Epidemiology and Infection, 143, 2733-2742. [More Information]
• Williams, K., Ward, M., Dhungyel, O. (2015). Daily variations in Escherichia coli O157 shedding patterns in a cohort of dairy heifers at pasture. Epidemiology and Infection, 143(7), 1388-1397. [More Information]
• van Breda, L., Ginn, A., Dhungyel, O., Iredell, J., Ward, M. (2015). E. coli disease and antibiotic resistance in piglets (oral presentation). Sunpork Biennial Managers’ Conference, N/A: N/A.
• van Breda, L., Dhungyel, O., Ward, M. (2015). E. coli disease and antibiotic resistance in the Australian pig industry (oral presentation). Australian Veterinary Association - Pan Pacific, N/A: N/A.
• Dhungyel, O., Schiller, N., Whittington, R. (2015). Identification and characterization of serogroup M Dichelobacter nodosus from sheep with virulent footrot. Veterinary Microbiology, 176(3-4), 378-381. [More Information]
• Williams, K., Ward, M., Dhungyel, O. (2015). Longitudinal Study of Escherichia coli O157 Shedding and Super Shedding in Dairy Heifers. Journal of Food Protection, 78(4), 636-642. [More Information]
• Williams, K., Ward, M., Dhungyel, O., Hall, E. (2015). Risk factors for Escherichia coli O157 shedding and super-shedding by dairy heifers at pasture. Epidemiology and Infection, 143(5), 1004-1015. [More Information]

2014

• Williams, K., Ward, M., Dhungyel, O., Hall, E., van Breda, L. (2014). A longitudinal study of the prevalence and super-shedding of Escherichia coli O157 in dairy heifers. Veterinary Microbiology, 173(1-2), 101-109. [More Information]
• Dhungyel, O., Whittington, R. (2014). Farm -specific monovalent/bivalent vaccination for treatment, control and eradication of virulent footrot in sheep flocks in Australia. 8th VACCINE & ISV CONGRESS, N/A: N/A.
• Dhungyel, O., Whittington, R. (2014). Farm-specific monovalent/bivalent vaccination for treatment. control and eradication of virulent footrot in sheep flocks in Australia. 8th VACCINE & ISV CONGRESS, N/A: N/A.
• Dhungyel, O., Hunter, J., Whittington, R. (2014). Footrot vaccines and vaccination. Vaccine, 32(1), 3139-3146. [More Information]
• Kennan, R., Gilhuus, M., Frosth, S., Seemann, T., Dhungyel, O., Whittington, R., Boyce, J., Powell, D., Aspan, A., Jorgensen, H., et al (2014). Genomic Evidence for a Globally Distributed, Bimodal Population in the Ovine Footrot Pathogen Dichelobacter nodosus. mBio, 5(5), 1-11. [More Information]
• Bhardwaj, V., Dhungyel, O., de Silva, K., Whittington, R. (2014). Investigation of immunity in sheep following footrot infection and vaccination. Vaccine, 32(51), 6979-6985. [More Information]
• Williams, K., Marsh, I., Saunders, V., Galea, F., Ward, M., Dhungyel, O. (2014). Pulsed field gel electrophoresis of Escherichia coil O157 Cattle and clinical cases. Zoonoses Conference 2014, N/A: N/A.
• Williams, K., Ward, M., Dhungyel, O., van Breda, L. (2014). Relative sensitivity of escherichia coli o157 detection from bovine feces and rectoanal mucosal swabs. Journal of Food Protection, 77(6), 872-1042. [More Information]

2013

• Raadsma, H., Dhungyel, O. (2013). A review of footrot in sheep: New approaches for control of virulent footrot. Livestock Science, 156(1-3), 115-125. [More Information]
• Gilhuus, M., Vatn, S., Dhungyel, O., Tesfamichael, B., Abee-Lund, T., Jorgensen, H. (2013). Characterisation of Dichelobacter nodosus isolates from Norway. Veterinary Microbiology, 163, 142-148. [More Information]
• Dhungyel, O., Hill, A., Dhand, N., Whittington, R. (2013). Comparative study of the commonly used virulence tests for laboratory diagnosis of ovine footrot caused by Dichelobacter nodosus in Australia. Veterinary Microbiology, 162, 756-760. [More Information]
• McGregor, H., Dhand, N., Dhungyel, O., Whittington, R. (2013). Investigating age based susceptibility and level of exposure for transmission of Mycobacterium avium subsp.paratuberculosis in sheep. 8th International Sheep Veterinary Congress, Rotorua, New Zealand: New Zealand Veterinary Association Inc.
• Dhungyel, O., Whittington, R. (2013). Outbreak-specific monovalent/bivalent vaccination for treatment, control and eradication of virulent footrot in sheep flocks in Australia. 17th International Symposium and 9th International Conference on lameness in Ruminants, N/A: N/A.
• Dhungyel, O., Shiller, N., Eppleston, J., Lehmann, D., Nilon, P., Ewers, A., Whittington, R. (2013). Outbreak-specific monovalent/bivalent vaccination to control and eradicate virulent ovine footrot. Vaccine, 31, 1701-1706. [More Information]

2012

• Dhungyel, O., Whittington, R., Schiller, N., Eppleston, J. (2012). New approach to footrot vacination for control and eradication of the disease in Australia. IVVDC 2012, Queensland: N/A.
• Dhungyel, O., Whittington, R. (2012). Sequential specific or target vaccination to control and eradicate multiple serogroup Dichelobacter nodosus infection in small ruminants. Footrot Symposium 2008, Australia: NSW Department of Primary Industries.
• McGregor, H., Dhand, N., Dhungyel, O., Whittington, R. (2012). Transmission of Mycobacterium avium subsp. paratuberculosis: Dose-response and age-based susceptibility in a sheep model. Preventive Veterinary Medicine, 107(1-2), 76-84. [More Information]

2011

• Bhardwaj, V., de Silva, K., Dhungyel, O., Whittington, R. (2011). Host Response to Footrot Infection and Vaccination in Sheep. Australian Society for Microbiology Annual Scientific Meeting, N/A: N/A.
• Dhungyel, O., Schiller, N., Whittington, R. (2011). New Approach to Footrot Vaccination - A Field Trial In Australia. 16th Symposium and 8th Conference on Lameness in Ruminants, New Zealand: Conference NZ.
• Dhungyel, O., Schiller, N., Eppleston, J., Whittington, R. (2011). New approach to footrot vaccination for control and eradication of the disease in Australia. Australian Sheep Veterinarians, N/A: N/A.

2010

• Hill, A., Dhungyel, O., Whittington, R. (2010). Diagnostic sampling strategies for virulent ovine footrot: Simulating detection of Dichelobacter nodosus serogroups for bivalent vaccine formulation. Preventive Veterinary Medicine, 95(1-2), 127-136. [More Information]
• Dhungyel, O., Whittington, R. (2010). Modulation of inter-vaccination interval to avoid antigenic competition in multivalent footrot (Dichelobacter nodosus) vaccines in sheep. Vaccine, 28(2), 470-473. [More Information]
• Kennan, R., Wong, W., Dhungyel, O., Han, X., Wong, D., Parker, D., Rosado, C., Law, R., McGowan, S., Reeve, S., Whittington, R., et al (2010). The Subtilisin-Like Protease AprV2 Is Required for Virulence and Uses a Novel Disulphide-Tethered Exosite to Bind Substrates. PLoS Pathogens, 6(11), e1001210 - 1-e1001210 - 12. [More Information]

2009

• Wong, W., Porter, C., Kennan, R., Dhungyel, O., Han, X., Wong, D., Marsh, I., Whittington, R., Rood, J., Whisstock, J. (2009). A molecular hook is required for the full activity of the AprV2 protease, a virulence factor from the ovine footrot pathogen, Dichelobacter nodosus. Melbourne Protein Group Meeting 8th Symposium, Monash: Monash University.
• Hill, A., Dhungyel, O., Whittington, R. (2009). Efficacy of 5-sheep sampling strategy at identification of serogroups of ovine virulent footrot (Dichelobacter nodosus) for targeted vaccination. 12th Symposium of the International Society for Veterinary Epidemiology and Economics ISVEE 2009, New Zealand: International Society for Veterinary Epidemiology and Economics.
• Kennan, R., Wong, W., Porter, C., Dhungyel, O., Han, X., Wong, D., Marsh, I., Whittington, R., Whisstock, J., Rood, J. (2009). Functional role of the exteded loop of the virulence-associated AprV2 protease from Dichelobacter nodosus./ BacPath 10: Molecular Analysis of Bacterial Pathogens. BacPath 10: Molecular Analysis of Bacterial Pathogens, South Australia: N/A.
• Kennan, R., Wong, W., Porter, C., Dhungyel, O., Han, X., Wong, D., Marsh, I., Whittington, R., Whisstock, J., Rood, J. (2009). Functional role of the extended loop of the virulence-associated AprV2 protease from Dichelobacter nodosus. BacPath 10, Adelaide: University of Adelaide.
• Dhungyel, O., Whittington, R. (2009). New approach to vaccination for treatment, control and eradication of footrot in sheep and goats. 7th International Sheep Veterinary Congress, US: World Veterinary Association.

2008

• Whittington, R., Dhungyel, O., Hill, A. (2008). Defining the spectrum of virulence. Footrot Symposium 2008, Australia: NSW Department of Primary Industries.
• Hill, A., Dhungyel, O., Whittington, R. (2008). Efficacy of 5-sheep sampling strategy at identification of predominant serogroups of ovine virulent footrot (Dichelobacter nodosus) for targeted vaccination. 89th Annual Meeting of the Conference of Research Workers in Animal Diseases CRWAD 2008, United States: Iowa State University Press.
• Rood, J., Kennan, R., Han, X., Dhungyel, O., Whittington, R. (2008). Molecular pathogenesis of ovine footrot. Footrot Symposium 2008, Australia: NSW Department of Primary Industries.
• Dhungyel, O., Lehmann, D., Whittington, R. (2008). Pilot trails in Australia on eradication of footrot by flock specific vaccination. Veterinary Microbiology, 132, 364-371. [More Information]
• Dhungyel, O., Whittington, R. (2008). Progress with Targeted footrot vaccine development. Australian Sheep Veterinarian Conference 2008, Australia: Australian Veterinary Association.
• Dhungyel, O., Whittington, R. (2008). Sequential Specific or Target Vaccination to Control and Eradicate Multiple Serogroup Dichelobacter nodosus Footrot Infection in Small Ruminants. 15th Symposium and 7th Conference on Lameness in Ruminants 2008, Kuopio, Finland: Savonia Ammattikorkeakoulu.
• Dhungyel, O., Whittington, R. (2008). Sequential specific or target vaccination to control and eradicate multiple serogroup Dichelobacter nodosus footrot infection in small ruminants. Australian Sheep Veterinarians Conference 2008, Australia.
• Han, X., Kennan, R., Davies, J., Reddacliff, L., Dhungyel, O., Whittington, R., Turnbull, L., Whitchurch, C., Rood, J. (2008). Twitching motility is essential for virulence in Dichelobacter nodosus. Journal of Bacteriology, 190(9), 3323-3335. [More Information]

2006

• Gurung, R., Tshering, P., Dhungyel, O., Egerton, J. (2006). Distribution and prevalence of footrot in Bhutan. The Veterinary Journal, 171, 346-351. [More Information]
• Dhungyel, O., Reeves, A., Lehmann, D., Eppleston, J., Whittington, R. (2006). Flock specific footrot vaccination trials in Australia. Australian Sheep Veterinarians Conference 2006, Australia: Australian Sheep Veterinary Society.
• Han, X., Kennan, R., Davies, J., Reddacliff, L., Dhungyel, O., Whittington, R., Rood, J. (2006). Mutation of the pilt and pilu genes of Dichelobacter nodosus has differential effects of protease secretion. ASM - FEMS Conference on Protein Traffic in Prokaryotes, Crete, Greece: Kyvos-The Copy Shop, Iraklio, Crete, Greece.
• Go, J., Lancaster, M., Deece, K., Dhungyel, O., Whittington, R. (2006). The molecular epidemiology of iridovirus in Murray cod (Maccullochella peelii peelii) and dwarf gourami (Colisa lalia) from distant biogeographical regions suggests a link between trade in ornamental fish and emerging iridoviral diseases. Molecular and Cellular Probes, 20, 212-222. [More Information]
• Gurung, R., Dhungyel, O., Tshering, P., Egerton, J. (2006). The use of an autogenous Dichelobacter nodosus vaccine to eliminate clinical signs of virulent footrot in a sheep flock in Bhutan. The Veterinary Journal, 172, 356-363. [More Information]

2005

• McGregor, H., Abbott, K., Dhungyel, O., Whittington, R. (2005). Developemnt of grazing management strategies for the control of ovine Johne's disease. MLA OJD Harvest Year Conference, North Sydney, N.S.W: Meat & Livestock Australia Ltd.
• Rood, J., Kennan, R., Han, X., Parker, D., Wong, D., Davies, J., Dhungyel, O., Whittington, R., Egerton, J. (2005). Fimbrial biogenesis, protease secretion and virulence in the ovine footrot pathogen, Dichelobacter nodosus. 2005 Australian Society for Microbiology Annual Conference, Melbourne, AU: Australian Society for Microbiology, Australia.
• Go, J., Lancaster, M., Deece, K., Dhungyel, O., Whittington, R. (2005). Molecular eqipdemiology of iridovirus infection in Murray cod and ornamental fish. Aquatic Animal Health Subprogram (Australia). Scientific Conference, Cairns: CSIRO.
• Han, X., Kennan, R., Davies, J., Reddacliff, L., Dhungyel, O., Whittington, R., Rood, J. (2005). Mutation of the pilT and pilU genes of Dichelobacter nodosus has differential effects on protease secretion. ASM Conference on Protein Traffic in Prokaryotes, Washington DC, USA: American Society for Microbiology.
• Stewart, D., Stiles, P., Horvatic, B., Bruce, K., McWaters, P., Vaughan, J., Beddome, G., Michalski, W., Whittington, R., Lambeth, C., Windsor, P., Reddacliff, L., McGregor, H., Dhungyel, O., et al (2005). Validation of the gamma-interferon test for diagnosis of ovine Johne's disease. MLA OJD Harvest Year Conference, North Sydney, N.S.W: Meat & Livestock Australia Ltd.

2004

• Whittington, R., Dhungyel, O., Egerton, J. (2004). Eradication of virulent footrot by specific vaccination. 2004 Australian Sheep Veterinary Society. Australian Sheep Veterinary Society.

2003

• Stewart, D., Stiles, P., Whittington, R., Lambeth, C., Windsor, P., Reddacliff, L., McGregor, H., Dhungyel, O., Cousins, D., Francis, B., et al (2003). Validation of the interferon-λ test for diagnosis of ovine Johne's disease: sensitivity and specificity field trials. 7th International Colloquium on Paratuberculosis ICP 2002, United States: International Association for Paratuberculosis.

2002

• Ghimire, S., Whittington, R., Dhungyel, O., Joshi, H., Egerton, J. (2002). Diagnosis of footrot in goats: application of ELISA tests for response to antigens of Dichelobacter nodosus. Veterinary Microbiology, 87(3), 237-251.
• Egerton, J., Ghimire, S., Dhungyel, O., Shrestha, H., Joshi, H., Joshi, B., Abbott, K., Kristo, C. (2002). Eradication of virulent footrot from sheep and goats in an endemic area of Nepal and an evaluation of specific vaccination. The Veterinary Record, 151, 290-295. [More Information]
• Dhungyel, O., Whittington, R., Egerton, J. (2002). Serogroup specific single and multiplex PCR with pre-enrichment culture and immuno-magnetic bead capture for identifying strains of D. nodosus in sheep with footrot prior to vaccination. Molecular and Cellular Probes, 16(4), 285-296. [More Information]
• Kennan, R., Dhungyel, O., Whittington, R., Egerton, J., Rood, J. (2002). Transformation-mediated serogroup conversion of Dichelobacter nodosus. Veterinary Microbiology, 92, 169-178. [More Information]

2001

• Dhungyel, O., Whittington, R., Ghimire, S., Egerton, J. (2001). Pilus ELISA and an anamnestic test for the diagnosis of virulent ovine footrot and its application in a disease control program in Nepal. Veterinary Microbiology, 79, 31-45. [More Information]
• Dhungyel, O., Whittington, R., Egerton, J. (2001). Serogrouping of Dichelobacter nodosus by PCR method. 2001 Australian Society for Microbiology Annual Scientific Meeting, West Leederville, W.A.: Cambridge Media.
• Kennan, R., Dhungyel, O., Whittington, R., Egerton, J., Rood, J. (2001). The type IV fimbrial subunit gene (fimA) of Dichelobacter nodosus is essential for virulence, protease secretion and natural competence. Journal of Bacteriology, 183, 4451-4458.
• Kennan, R., Dhungyel, O., Whittington, R., Egerton, J., Rood, J. (2001). The type IV fimbrial subunit gene of Dichelobacter nododus is essential for virulence. 2001 Australian Society for Microbiology Annual Scientific Meeting, West Leederville, W.A.: Cambridge Media.