Associate Professor Ryan O'Handley
Associate Professor/Reader
School of Animal and Veterinary Science
Faculty of Sciences, Engineering and Technology
I am a founding member of the Parasitic Diseases Research Group (ParaDRG) at the University of Adelaide. My research interests and expertise is focused on the biology and control of parasitic diseases. I am specifically interested in the development of vaccines and novel drugs to control parasitic diseases in livestock and companion animals. My current research is targeted to apicomplexam parasites such as Toxoplasma gondii and eneteric coccidia, but I am also interested in Giardiasis, gastrointestinal nematodes and canine heartworm.
I also have a keen interest in parasite diagnostics and lead the Parasitology section of the Veterinary Diagnostic Laboratory at the School of Animal and Veterinary Sciences.
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Appointments
Date Position Institution name 2016 - ongoing Associate Professor, Parasitology University of Adelaide 2015 - 2021 Department Head University of Adelaide 2010 - 2016 Senior Lecturer, Parasitology University of Adelaide 2004 - 2010 Senior Research Fellow Murdoch University 2001 - 2004 Assistant Professor, Parasitology University of Prince Edward Island 2000 - 2001 Research Scientist United States Department of Agriculture 1995 - 1996 Rumen Microbiology Technician Agriculture and Agriculture-Food Canada -
Education
Date Institution name Country Title 1995 - 2000 University of Calgary Canada PhD 1991 - 1995 University of Saskatchewan Canada BSc
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Journals
Year Citation 2025 Atkinson, P. J., O'Handley, R., Nielsen, T., & Caraguel, C. G. B. (2025). Heterogeneous distribution of the reported prevalence of Dirofilaria immitis infections in Australian canids - A systematic review and meta-analysis.. Preventive Veterinary Medicine, 237, 106438-1-106438-9.
Scopus12024 Spaeth, B., Taylor, S., Shephard, M., Reed, R. L., Omond, R., Karnon, J., . . . Finfer, S. (2024). Point-of-care testing for sepsis in remote Australia and for First Nations peoples. Nature Medicine, 30(8), 2105-2106.
Scopus12024 Atkinson, P. J., Stevenson, M., O'Handley, R., Nielsen, T., & Caraguel, C. (2024). 'Transmission Tracker - Dirofilaria'- a public dashboard to assess in real-time the temperature-bounded transmissibility of canine heartworm across Australia.. Australian Veterinary Journal, 102(12), 626-629.
Europe PMC12024 Bury, C., Caraguel, C., Chaber, A. L., & O'Handley, R. (2024). Risk factors associated with increased Toxoplasma gondii seroprevalence in South Australian Sheep. Veterinary Parasitology, 332, 7 pages.
2024 Hough, I., O'Handley, R., & Speight, N. (2024). Cryptosporidium-associated enteritis in captive koalas (Phascolarctos cinereus).. Aust Vet J, 102(6), 313-315.
2024 Ran, J., Talebian‐Kiakalaieh, A., & Qiao, S. (2024). Atomically‐Scattered Active Centers Accelerating Photocatalytic Evolution of Ammonia. Advanced Energy Materials, 14(28), 2400650 -1-2400650 -18.
Scopus112024 Atkinson, P. J., Stevenson, M., O'Handley, R., Nielsen, T., & Caraguel, C. G. B. (2024). Temperature-bounded development of Dirofilaria immitis larvae restricts the geographical distribution and seasonality of its transmission: case study and decision support system for canine heartworm management in Australia.. International journal for parasitology, 54(6), 311-319.
Scopus5 Europe PMC32024 Ellehave, S. M., Voldbjerg, S. L., Rasmussen, P., & Laugesen, B. (2024). Nurses’ perceptions of reasons for missed nursing care in hospitals: a qualitative systematic review protocol. Jbi Evidence Synthesis, 22(8), 1594-1600.
2023 Lin, F., Li, C., Xu, B., Chen, J., Chen, A., Hassan, M. A., . . . Li, J. (2023). Late spring cold reduces grain number at various spike positions by regulating spike growth and assimilate distribution in winter wheat. CROP JOURNAL, 11(4), 1272-1278.
2023 Xu, B., Cao, L., Zhang, Z., Li, X., Zhao, X., Wang, X., . . . Rong, L. (2023). Physiological effects of combined NaCl and NaHCO<sub>3</sub> stress on the seedlings of two maple species. FRONTIERS IN PLANT SCIENCE, 14, 9 pages.
2023 Ngo, P., Lignereux, L., O'Handley, R., & Vyas, A. (2023). An extended epiphenotype for an extended phenotype in Toxoplasma gondii infected feral house mice. Functional Ecology, 37(4), 845-851.
Scopus1 WoS12023 Atkinson, P. J., O'Handley, R., Nielsen, T., & Caraguel, C. G. (2023). Relative diagnostic accuracy of point-of-care tests to rule-in Dirofilaria immitis infection in clinically suspect dogs: A systematic review and meta-analysis. Preventive Veterinary Medicine, 217, 105970-1-105970-11.
Scopus22023 Lignereux, L., Tong, W. H., Tan, S., Vyas, A., & O'handley, R. (2023). Presence of IgG antibodies is not a reliable marker of Toxoplasma gondii infection in feral mice. International Journal for Parasitology: Parasites and Wildlife, 22, 75-79.
2022 Baudinette, E., O'Handley, R., & Trengove, C. (2022). Anthelmintic resistance of gastrointestinal nematodes in goats: A systematic review and meta-analysis.. Veterinary parasitology, 312, 1-15.
Scopus15 WoS2 Europe PMC112022 Burns, A. L., Sleebs, B. E., Gancheva, M., McLean, K. T., Siddiqui, G., Venter, H., . . . Wilson, D. W. (2022). Targeting malaria parasites with novel derivatives of azithromycin. Frontiers in Cellular and Infection Microbiology, 12, 16 pages.
Scopus4 Europe PMC32022 Clune, T., Lockwood, A., Hancock, S., Thompson, A. N., Beetson, S., Bruce, M., . . . Jacobson, C. (2022). Seropositivity to Coxiella burnetii in primiparous and multiparous ewes from southern Australia: A cross-sectional study. Comparative Immunology, Microbiology and Infectious Diseases, 80, 101727.
Scopus5 WoS4 Europe PMC42022 Clune, T., Lockwood, A., Hancock, S., Thompson, A. N., Beetson, S., Campbell, A. J. D., . . . Jacobson, C. (2022). Abortion and lamb mortality between pregnancy scanning and lamb marking for maiden ewes in Southern Australia. Animals, 12(1), 14 pages.
Scopus19 WoS11 Europe PMC102022 Clune, T., Lockwood, A., Hancock, S., Thompson, A. N., Bruce, M., Beetson, S., . . . Jacobson, C. (2022). Toxoplasma gondii is not an important contributor to poor reproductive performance of primiparous ewes from southern Australia: a prospective cohort study. BMC Veterinary Research, 18(1), 10 pages.
Scopus6 WoS3 Europe PMC42022 Clune, T., Bruce, M., Glanville, E., Campbell, A. J. D., Lockwood, A., Hancock, S., . . . Jacobson, C. (2022). Seropositivity to Campylobacter and association with abortion and lamb mortality in maiden ewes from Western Australia, South Australia and Victoria. Australian Veterinary Journal, 100(8), 397-406.
Scopus2 WoS1 Europe PMC22022 Hodgens, P., Groffen, H., O'Handley, R., Vyas, A., & Lignereux, L. (2022). Cat predation of Kangaroo Island dunnarts in aftermath of bushfire. Scientific Reports, 12(1), 6 pages.
Scopus42022 Chaber, A. -L., Easther, R., Cumming, B., Irving, R., Al, K., Smart, C., . . . Lignereux, L. (2022). Ehrlichia canis rapid spread and possible enzooty in northern South Australia and distribution of its vector Rhipicephalus linnaei. AUSTRALIAN VETERINARY JOURNAL, 100(11), 533-538.
Scopus7 WoS1 Europe PMC62022 Lindsay, S. A., Caraguel, C. G. B., O’Handley, R., Šlapeta, J., & Gray, R. (2022). Toxoplasma gondii seroprevalence in the endangered Australian sea lion (Neophoca cinerea). Frontiers in Marine Science, 9, 10 pages.
Scopus42022 Stevens, A. J., Abraham, R., Young, K. A., Russell, C. C., McCluskey, S. N., Baker, J. R., . . . McCluskey, A. (2022). Antigiardial activity of novel guanidine compounds. ChemMedChem, 17(21), e202200341-1-e202200341-6.
Scopus4 WoS2 Europe PMC42021 Tong, W. H., Pavey, C., O'Handley, R., & Vyas, A. (2021). Behavioral biology of Toxoplasma gondii infection. PARASITES & VECTORS, 14(1), 6 pages.
Scopus41 WoS17 Europe PMC292021 Clune, T., Lockwood, A., Hancock, S., Bruce, M., Thompson, A. N., Beetson, S., . . . Jacobson, C. (2021). Neospora caninum is not an important contributor to poor reproductive performance of primiparous ewes from southern Australia: evidence from a cross-sectional study. Parasitology Research, 120(11), 3875-3882.
Scopus9 WoS7 Europe PMC52020 Wong, A., Lanyon, J. M., O'Handley, R., Linedale, R., Woolford, L., Long, T., & Leggatt, G. R. (2020). Serum antibodies against Toxoplasma gondii and Neospora caninum in southeast Queensland dugongs. Marine Mammal Science, 36(1), 180-194.
Scopus9 WoS52020 McKenny, L., O'Handley, R., Kovaliski, J., Mutze, G., Peacock, D., & Lanyon, S. (2020). Evidence of infection with Toxoplasma gondii and Neospora caninum in South Australia: using wild rabbits as a sentinel species. Australian Veterinary Journal, 98(8), 380-387.
Scopus7 WoS4 Europe PMC52020 Lanyon, S. R., & O'Handley, R. M. (2020). Relationship between Toxoplasma gondii seroprevalence and lamb marking in South Australian sheep flocks. Australian Veterinary Journal, 98(11), 525-528.
Scopus8 WoS5 Europe PMC32020 Li, R., Lv, Y., Xue, M., Deng, X., Li, D., & Dong, Y. (2020). Microstructure and properties of reactive plasma sprayed nano-Ti<sub>x</sub>Cr<sub>1-x</sub>N ceramic coating. SURFACE & COATINGS TECHNOLOGY, 391, 8 pages.
2019 Abraham, R. J., Abraham, S., Stevens, A. J., Page, S. W., McCluskey, A., Trott, D. J., & O'Handley, R. M. (2019). Aminoguanidines: new leads for treatment of Giardia duodenalis infection. International Journal for Parasitology: Drugs and Drug Resistance, 10, 38-44.
Scopus11 WoS7 Europe PMC62019 Saeed, M. A., Beveridge, I., Abbas, G., Beasley, A., Bauquier, J., Wilkes, E., . . . Jabbar, A. (2019). Systematic review of gastrointestinal nematodes of horses from Australia. Parasites and Vectors, 12(1), 16 pages.
Scopus50 WoS29 Europe PMC342019 Dearsley, E., O'Handley, R. M., & Caraguel, C. G. (2019). Is canine heartworm (Dirofilaria immitis) endemic to South Australia?. Australian Veterinary Journal, 97(6), 191-196.
Scopus11 WoS7 Europe PMC52018 Abraham, R., O'Dea, M., Rusdi, B., Page, S., O'Handley, R., & Abraham, S. (2018). Giardia duodenalis mouse model for the development of novel antigiardial agents. Journal of Microbiological Methods, 145, 7-9.
Scopus3 WoS2 Europe PMC32018 Hickey, E., Wong, H., Khazandi, M., Ogunniyi, A., Petrovski, K., Garg, S., . . . Trott, D. (2018). Repurposing Ionophores as novel antimicrobial agents for the treatment of bovine mastitis caused by Gram-positive pathogens. Journal of Veterinary Pharmacology and Therapeutics, 41(5), 746-754.
Scopus19 WoS15 Europe PMC122018 Evans, C., Lanyon, S., O Handley, R., Reichel, M., & Cockcroft, P. (2018). Seroprevalence of antibodies to Pestivirus infections in South Australian sheep flocks. Australian Veterinary Journal, 96(8), 312-314.
Scopus9 WoS4 Europe PMC42017 Uehlinger, F., Naqvi, S., Greenwood, S., McClure, J., Conboy, G., O'Handley, R., & Barkema, H. (2017). Comparison of five diagnostic tests for Giardia duodenalis in fecal samples from young dogs. Veterinary Parasitology, 244, 91-96.
Scopus23 WoS15 Europe PMC132016 Abraham, R., Stevens, A., Young, K., Russell, C., Qvist, A., Khazandi, M., . . . Trott, D. (2016). Robenidine analogues as Gram-positive antibacterial agents. Journal of Medicinal Chemistry, 59(5), 2126-2138.
Scopus29 WoS24 Europe PMC232015 Wong, H., Maker, G., Trengove, R., & O'Handley, R. (2015). Gas chromatography-mass spectrometry-based metabolite profiling of Salmonella enterica serovar typhimurium differentiates between biofilm and planktonic phenotypes. Applied and Environmental Microbiology, 81(8), 2660-2666.
Scopus21 WoS17 Europe PMC152015 Jeffery Marano, R., Jane Wallace, H., Wijeratne, D., William Fear, M., San Wong, H., & O'Handley, R. (2015). Secreted biofilm factors adversely affect cellular wound healing responses in vitro. Scientific Reports, 5(1), 11 pages.
Scopus40 WoS28 Europe PMC282014 Geurden, T., Olson, M., O'Handley, R., Schetters, T., Bowman, D., & Vercruysse, J. (2014). World Association for the Advancement of Veterinary Parasitology (WAAVP): guideline for the evaluation of drug efficacy against non-coccidial gastrointestinal protozoa in livestock and companion animals. Veterinary Parasitology, 204(3-4), 81-86.
Scopus12 WoS7 Europe PMC182013 Uehlinger, F., Greenwood, S., McClure, J., Conboy, G., O'Handley, R., & Barkema, H. (2013). Zoonotic potential of Giardia duodenalis and Cryptosporidium spp. and prevalence of intestinal parasites in young dogs from different populations on Prince Edward Island, Canada. Veterinary Parasitology, 196(3), 509-514.
Scopus59 WoS38 Europe PMC342013 Tai, M., O'Handley, R., Hemmatzadeh, F., Jenkins, D., & Stott, P. (2013). Ovine nematodes in wild lagomorphs in Australia and first record of Trichostrongylus rugatus in free living lagomorphs. Veterinary Parasitology, 197(1-2), 370-373.
Scopus4 WoS3 Europe PMC22013 Koh, W., Geurden, T., Paget, T., O'Handley, R., Steuart, R., Thompson, R., & Buret, A. (2013). Giardia duodenalis assemblage-specific induction of apoptosis and tight junction disruption in human intestinal epithelial cells: Effects of mixed infections. Journal of Parasitology, 99(2), 353-358.
Scopus44 WoS33 Europe PMC322013 Wapenaar, W., Barkema, H., & O'Handley, R. (2013). Fecal shedding of Toxocara canis and other parasites in foxes and coyotes on Prince Edward Island, Canada. Journal of Wildlife Diseases, 49(2), 394-397.
Scopus13 WoS10 Europe PMC62012 Wapenaar, W., De Bie, F., Johnston, D., O'Handley, R., & Barkema, H. (2012). Population structure of harvested Red Foxes (Vulpes vulpes) and Coyotes (Canis latrans) on Prince Edward Island, Canada. Canadian Field-Naturalist, 126(4), 288-294.
Scopus2 WoS22011 Uehlinger, F., Greenwood, S., O'Handley, R., McClure, J., Coklin, T., Dixon, B., . . . Barkema, H. (2011). Prevalence and genotypes of Giardia duodenalis in dairy and beef cattle in farms around Charlottetown, Prince Edward Island, Canada. Canadian Veterinary Journal-Revue Veterinaire Canadienne, 52(9), 967-972.
Scopus18 WoS16 Europe PMC132011 VanLeeuwen, J., Greenwood, S., Clark, F., Acorn, A., Markham, F., McCarron, J., & O'Handley, R. (2011). Monensin use against Neospora caninum challenge in dairy cattle. Veterinary Parasitology, 175(3-4), 372-376.
Scopus19 WoS17 Europe PMC162010 Wong, H., Townsend, K., Fenwick, S., Trengove, R., & O'Handley, R. (2010). Comparative susceptibility of planktonic and 3-day-old Salmonella Typhimurium biofilms to disinfectants. Journal of Applied Microbiology, 108(6), 2222-2228.
Scopus72 WoS61 Europe PMC392010 Wong, H., Townsend, K., Fenwick, S., Maker, G., Trengove, R., & O'Handley, R. (2010). Comparative susceptibility of Salmonella Typhimurium biofilms of different ages to disinfectants. Biofouling, 26(7), 859-864.
Scopus42 WoS34 Europe PMC182009 Coklin, T., Uehlinger, F., Farber, J., Barkema, H., O'Handley, R., & Dixon, B. (2009). Prevalence and molecular characterization of Cryptosporidium spp. in dairy calves from 11 farms in Prince Edward Island, Canada. Veterinary Parasitology, 160(3-4), 323-326.
Scopus33 WoS29 Europe PMC202009 Parameswaran, N., O'Handley, R., Grigg, M., Wayne, A., & Thompson, R. (2009). Vertical transmission of Toxoplasma gondii in Australian marsupials. Parasitology, 136(9), 939-944.
Scopus38 WoS29 Europe PMC252009 Parameswaran, N., O'Handley, R., Grigg, M., Fenwick, S., & Thompson, R. (2009). Seroprevalence of Toxoplasma gondii in wild kangaroos using an ELISA. Parasitology International, 58(2), 161-165.
Scopus48 WoS39 Europe PMC302008 Steuart, R., O'Handley, R., Lipscombe, R., Lock, R., & Thompson, R. (2008). Alpha 2 giardin is an assemblage A-specific protein of human infective Giardia duodenalis. Parasitology, 135(14), 1621-1627.
Scopus21 WoS23 Europe PMC182008 Uehlinger, F., Barkema, H., O'Handley, R., Parenteau, M., Parrington, L., VanLeeuwen, J., & Dixon, B. (2008). Comparison of flow cytometry and immunofluorescence microscopy for the detection of Giardia duodenalis in bovine fecal samples. Journal of Veterinary Diagnostic Investigation, 20(2), 178-185.
Scopus6 WoS6 Europe PMC42008 O'Handley, R. (2008). Cryptosporidium parvum infection in cattle: are current perceptions accurate?. Trends in Parasitology, 23(10), 477-480.
Scopus32 WoS22 Europe PMC182008 Thompson, R., Palmer, C., & O'Handley, R. (2008). The public health and clinical significance of Giardia and Cryptosporidium in domestic animals. Veterinary Journal, 177(1), 18-25.
Scopus239 WoS176 Europe PMC1432007 Wapenaar, W., Barkema, H., Schares, G., Rouvinen-Watt, K., Zeijlemaker, L., Poorter, B., . . . Dubey, J. (2007). Evaluation of four serological techniques to determine the seroprevalence of Neospora caninum in foxes (Vulpes vulpes) and coyotes (Canis latrans) on Prince Edward Island, Canada. Veterinary Parasitology, 145(1-2), 51-58.
Scopus15 WoS15 Europe PMC112007 Wapenaar, W., Barkema, H., Eysker, M., & O'Handley, R. (2007). An outbreak of dictyocaulosis in lactating cows on a dairy farm. Journal of the American Veterinary Medical Association, 231(11), 1715-1718.
Scopus28 WoS21 Europe PMC112007 Wapenaar, W., Barkema, H., O'Handley, R., & Bartels, C. (2007). Use of an enzyme-linked immunosorbent assay in bulk milk to estimate the prevalence of Neospora caninum on dairy farms in Prince Edward Island, Canada. Canadian Veterinary Journal-Revue Veterinaire Canadienne, 48(5), 493-499.
Scopus21 WoS17 Europe PMC102007 Uehlinger, F., O'Handley, R., Greenwood, S., Guselle, N., Gabor, L., Van Velsen, C., . . . Barkema, H. (2007). Efficacy of vaccination in preventing giardiasis in calves. Veterinary Parasitology, 146(1-2), 182-188.
Scopus14 WoS16 Europe PMC112007 Wapenaar, W., Barkema, H., VanLeeuwen, J., McClure, J., O'Handley, R., Kwok, O., . . . Jenkins, M. (2007). Comparison of serological methods for the diagnosis of Neospora caninum infection in cattle. Veterinary Parasitology, 143(2), 166-173.
Scopus53 WoS49 Europe PMC362006 Wapenaar, W., Jenkins, M., O'Handley, R., & Barkema, H. (2006). Neospora caninum-like oocysts observed in feces of free-ranging red foxes (Vulpes vulpes) and coyotes (Canis latrans). Journal of Parasitology, 92(6), 1270-1274.
Scopus60 WoS52 Europe PMC432006 Uehlinger, F., Barkema, H., Dixon, B., Coklin, T., & O'Handley, R. (2006). Giardia duodenalis and Cryptosporidium spp. in a veterinary college bovine teaching herd. Veterinary Parasitology, 142(3-4), 231-237.
Scopus35 WoS32 Europe PMC242006 O'Handley, R., & Olson, M. (2006). Giardiasis and Cryptosporidiosis in ruminants. Veterinary Clinics of North America-Food Animal Practice, 22(3), 623-643.
Scopus94 WoS74 Europe PMC612006 Ogden, N., Trudel, L., Artsob, H., Barker, I., Beauchamp, G., Charron, D., . . . Lindsay, L. (2006). Ixodes scapularis ticks collected by passive surveillance in Canada: analysis of geographic distribution and infection with Lyme borreliosis agent Borrelia burgdorferi. Journal of Medical Entomology, 43(3), 600-609.
Scopus145 WoS130 Europe PMC1122006 McInnes, L., Ryan, U., O'Handley, R., Sager, H., Forshaw, D., & Palmer, D. (2006). Diagnostic significance of Neospora caninum DNA detected by PCR in cattle serum. Veterinary Parasitology, 142(3-4), 207-213.
Scopus28 WoS23 Europe PMC222004 Jenkins, M., Soares, R., Murphy, C., Hemphill, A., O'Handley, R., & Dubey, J. P. (2004). Localization of a 56-kDa antigen that is present in multiple developmental stages of Neospora caninum.. The Journal of parasitology, 90(3), 660-663.
Scopus3 WoS2 Europe PMC22004 Olson, M. E., O'Handley, R. M., Ralston, B. J., McAllister, T. A., & Thompson, R. C. A. (2004). Update on Cryptosporidium and Giardia infections in cattle. Trends in Parasitology, 20(4), 185-191.
Scopus253 WoS205 Europe PMC1422003 O'Handley, R. M., Morgan, S. A., Parker, C., Jenkins, M. C., & Dubey, J. P. (2003). Vaccination of ewes for prevention of vertical transmission of Neospora caninum. American Journal of Veterinary Research, 64(4), 449-452.
Scopus17 WoS14 Europe PMC102003 O'Handley, R. M., Ceri, H., Anette, C., & Olson, M. E. (2003). Passive immunity and serological immune response in dairy calves associated with natural Giardia duodenalis infections. Veterinary Parasitology, 113(2), 89-98.
Scopus30 WoS29 Europe PMC212002 O'Handley, R., Liddell, S., Parker, C., Jenkins, M. C., & Dubey, J. P. (2002). Experimental infection of sheep with Neospora caninum oocysts. Journal of Parasitology, 88(6), 1120-1123.
Scopus31 WoS29 Europe PMC222001 O'Handley, R. M., Buret, A. G., McAllister, T. A., Jelinski, M., & Olson, M. E. (2001). Giardiasis in dairy calves: Effects of fenbendazole treatment on intestinal structure and function. International Journal for Parasitology, 31(1), 73-79.
Scopus38 WoS36 Europe PMC222000 O'Handley, R. M., Olson, M. E., Fraser, D., Adams, P., & Thompson, R. C. A. (2000). Prevalence and genotypic characterisation of Giardia in dairy calves from Western Australia and Western Canada. Veterinary Parasitology, 90(3), 193-200.
Scopus128 WoS121 Europe PMC962000 O'Handley, R. M., Cockwill, C., Jelinski, M., McAllister, T. A., & Olson, M. E. (2000). Effects of repeat fenbendazole treatment in dairy calves with giardiosis on cyst excretion, clinical signs and production. Veterinary Parasitology, 89(3), 209-218.
Scopus39 WoS36 Europe PMC252000 O'HANDLEY, R. M. (2000). Unknown Title. Vet. Parasitol., 90, 193-200. 1999 O'Handley, R. M., Cockwill, C., McAllister, T. A., Jelinski, M., Morck, D. W., & Olson, M. E. (1999). Duration of naturally acquired giardiosis and cryptosporidiosis in dairy calves and their association with diarrhea. Journal of the American Veterinary Medical Association, 214(3), 391-396.
Scopus219 WoS196 Europe PMC1231997 Olson, M. E., Guselle, N. J., O'Handley, R. M., Swift, M. L., McAllister, T. A., Jelinski, M. D., & Morck, D. W. (1997). Giardia and Cryptosporidium in dairy calves in British Columbia. Canadian Veterinary Journal, 38(11), 703-706.
Scopus119 WoS109 Europe PMC701997 O'Handley, R. M., Olson, M. E., McAllister, T. A., Morck, D. W., Jelinski, M., Royan, G., & Cheng, K. J. (1997). Efficacy of fenbendazole for treatment of giardiasis in calves. American Journal of Veterinary Research, 58(4), 384-388.
Scopus49 WoS44 Europe PMC24 -
Book Chapters
Year Citation 2019 Geurden, T., & O’Handley, R. (2019). Cryptosporidiosis: An update. In Encyclopedia of Environmental Health (pp. 781-788). Elsevier.
DOI2011 Geurden, T., & O'Handley, R. (2011). Cryptosporidiosis: An Update. In J. Nriagu (Ed.), Encyclopedia of Environmental Health (pp. 844-851). Elsevier.
DOI2011 Geurden, T., & O'Handley, R. (2011). Cryptosporidiosis: An Update. In Encyclopedia of Environmental Health Volume 1 5 (Vol. 1, pp. V1-V1-851).
DOI2003 Olson, M. E., Ralston, B. J., O'Handley, R., Guselle, N. J., & Appelbee, A. J. (2003). What is the Clinical and Zoonotic Significance of Cryptosporidiosis in Domestic Animals and Wildlife. In Cryptosporidium from Molecules to Disease (pp. 51-68). Elsevier.
DOI Scopus162002 O'Handley, R. M. (2002). Giardia in Farm Animals. In B. E. Olson, M. E. Olson, & P. E. Wallis (Eds.), Giardia The Cosmopolitan Parasite. Wallingford, England : CABI Publishing. -
Conference Papers
Year Citation 2023 Zhan, G., Deng, J., Cabezas, M., Ouyang, W., Barnett, M., & Wang, C. (2023). Fed-CoT: Co-teachers for Federated Semi-supervised MS Lesion Segmentation. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) Vol. 14393 (pp. 357-366). Online: Springer Nature Switzerland.
DOI2019 Clynick, B., Jo, H., Corte, T., Glaspole, I., Grainge, C., Hopkins, P., . . . Moodley, Y. (2019). DIFFERENCES IN CIRCULATING NUCLEIC ACIDS BETWEEN PATIENTS WITH STABLE AND PROGRESSIVE LUNG FUNCTION IN IPF. In RESPIROLOGY Vol. 24 (pp. 35). WILEY. -
Conference Items
Year Citation 2019 Dal Grande, E., Nielsen, T. D., & O'Handley, R. M. (2019). Endemic parasitic conditions in sheep and association with other endemic conditions using the South Australian Enhanced Abattoir Surveillance (EAS) Program. Poster session presented at the meeting of Australian Society for Parasitology Conference. Adelaide, SA, Australia. 2017 Lanyon, S. R., McKenny, L., Kovaliski, J., Peacock, D., Mutze, G., & O'Handley, R. (2017). Environmental Contamination with Toxoplasma gondii and Neospora caninum in South Australia, using rabbits as a sentinel species. Poster session presented at the meeting of Australian Society for Parasitology Annual Conference. Luera, NSW. 2016 O'Handley, R., & Lanyon, S. R. (2016). Prevalence and reproductive impact of Toxoplasma gondii infection in South Australian sheep. Poster session presented at the meeting of International Congress for Tropical Medicine and Malaria. Brisbane, Qld. 2016 Tragar, E., Caraguel, C. G., O'Handley, R. M., Firestone, S., & Stevenson, M. (2016). Prediction of canine heartworm transmission seasons in Australia. Poster session presented at the meeting of GEOVET 2016. Valdivia, Chile.
Parasitology, VET SCI 3515RW / ANSCI 3515RW (course coordinator 2010-Present)
This course is a core component of the Veterinary Bioscience degree and the DVM degree and a elective in the Animal Science degree. Lectures focus on concepts of parasitology and parasitism, parasite life cycles, and the pathogenesis of parasitic disease. Practicals focus on clinical diagnosis of parasitism and students work independently. Small group learning, critical thinking, and problem solving skills are a major component of the practicals.
Pathology and Diagnostic Services A and B, VET SCI 7304ARW
Postgraduate rotation as part of the DVM program. The parasitology component involves students performing diagnoses on actual parasitology cases and forces them to consider clinical outcomes, treatment, and control measures. Small group teaching.
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Current Higher Degree by Research Supervision (University of Adelaide)
Date Role Research Topic Program Degree Type Student Load Student Name 2025 Principal Supervisor Protozoal parasites of Australian Horses Doctor of Philosophy Doctorate Full Time Miss Megan Arianne Jones 2022 Co-Supervisor Ecology and epidemiology of vector borne diseases in a changing climate Doctor of Philosophy Doctorate Part Time Dr Peter Jonathon Atkinson 2021 Principal Supervisor Development of methods to control toxoplasmosis and associated apicomplexan parasites in livestock Doctor of Philosophy Doctorate Full Time Mr Quinn Phillip Mackie -
Past Higher Degree by Research Supervision (University of Adelaide)
Date Role Research Topic Program Degree Type Student Load Student Name 2016 - 2024 Principal Supervisor The Search for New Species of the Protist Family Folliculinidae in Australia and a Taxonomic Review of the Genus Folliculinidae Doctor of Philosophy Doctorate Full Time Mr John Douglas 2013 - 2018 Principal Supervisor Repurposing of Robenidine and Characterization of Novel Analogues for Treatment of Infectious Diseases Doctor of Philosophy Doctorate Full Time Mrs Rebecca Jane Abraham 2010 - 2013 Co-Supervisor Do sheep worms occur in wild hares and rabbits in Australia? Master of Science Master Full Time Miss Marina Hsiang Hua Tai
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