
Overview
Background
Prof Tim Mahony joined QAAFI’s Centre for Animal Science in October 2010, after 15 years of conducting research projects with the Queensland Government. He obtained his PhD from James Cook University in the area of molecular microbiology. During 2001 and 2002, Prof Mahony was a visiting professor at the University of Saskatchewan.
Research interests
Dr Mahony’s research interests are in the area of molecular virology revolving around improving viral disease control in production animals such as cattle and poultry. His group is characterising the molecular interactions between invading pathogens and the subsequent host responses with the goal of developing new vaccines and diagnostic technologies. A key component of this work includes improving the basic understanding of the molecular mechanisms that underpin and drive viral virulence and evolution. Next-generation sequencing has been used to sequence the genomes of herpesviruses and adenoviruses from a variety of species including, cattle, chickens, marsupials, horses, and crocodiles. Prof Mahony’s team is also investigating the role of virally encoded microRNAs in virulence, replication, and disease development. His group was one of the first in the world to apply bacterial artificial chromosome infectious clone technology for the efficient manipulation of herpesviruses that have large DNA genomes. These strategies are also being exploited to understand viral gene function and the development of vaccines.
Currently, Prof Mahony is researching risk factors that protect and predispose feedlot cattle to developing bovine respiratory disease (BRD). He is also leading the development of new vaccines for BRD and cattle tick infestations. Prof Mahony has also led the development of new vaccine delivery technologies for the poultry industry targeting the application of in ovo strategies. Prof Mahony research into improving animal health is increasing industry productivity, food safety, and consumer confidence in food products and he is keen to explore collaborations with other scientists in this area.
Prof Mahony has a strong interest to work with post-graduate students and has supervised a number of post-graduate students from Australia and overseas. These projects have covered research areas in molecular virology, animal health, vaccine development, and pathogen-host interactions.
Availability
- Professor Timothy Mahony is:
- Available for supervision
- Media expert
Fields of research
Qualifications
- Doctor of Philosophy, James Cook University
Works
Search Professor Timothy Mahony’s works on UQ eSpace
2016
Journal Article
Associations between prior management of cattle and risk of bovine respiratory disease in feedlot cattle
Hay, K. E., Morton, J. M., Schibrowski, M. L., Clements, A. C. A., Mahony, T. J. and Barnes, T. S. (2016). Associations between prior management of cattle and risk of bovine respiratory disease in feedlot cattle. Preventive Veterinary Medicine, 127, 37-43. doi: 10.1016/j.prevetmed.2016.02.006
2016
Journal Article
Associations between exposure to viruses and bovine respiratory disease in Australian feedlot cattle
Hay, K. E., Barnes, T. S., Morton, J. M., Gravel, J. L., Commins, M. A., Horwood, P. F., Ambrose, R. C., Clements, A. C. A. and Mahony, T. J. (2016). Associations between exposure to viruses and bovine respiratory disease in Australian feedlot cattle. Preventive Veterinary Medicine, 127, 121-133. doi: 10.1016/j.prevetmed.2016.01.024
2016
Journal Article
Evaluation of an IgG enzyme-linked immunosorbent assay as a serological assay for detection of mycoplasma bovis infection in feedlot cattle
Wawegama, Nadeeka K., Markham, Philip F., Kanci, Anna, Schibrowski, Meghan, Oswin, Sally, Barnes, Tamsin S., Firestone, Simon M., Mahony, Timothy J. and Browning, Glenn F. (2016). Evaluation of an IgG enzyme-linked immunosorbent assay as a serological assay for detection of mycoplasma bovis infection in feedlot cattle. Journal of Clinical Microbiology, 54 (5), 1269-1275. doi: 10.1128/JCM.02492-15
2016
Journal Article
Untangling the complexity of diseases such as calf diarrhoea is crucial to future productivity
Mahony, Timothy J. (2016). Untangling the complexity of diseases such as calf diarrhoea is crucial to future productivity. Veterinary Journal, 210, 3-4. doi: 10.1016/j.tvjl.2015.11.005
2016
Journal Article
Efficient and durable vaccine against Intimin β of Diarrheagenic E. Coli induced by clay nanoparticles
Chen, Weiyu, Zhang, Bing, Mahony, Timothy, Gu, Wenyi, Rolfe, Barbara and Xu, Zhi Ping (2016). Efficient and durable vaccine against Intimin β of Diarrheagenic E. Coli induced by clay nanoparticles. Small, 12 (12), 1627-1639. doi: 10.1002/smll.201503359
2016
Journal Article
Vaccine Adjuvants: Efficient and Durable Vaccine against Intimin β of Diarrheagenic E. Coli Induced by Clay Nanoparticles (Small 12/2016)
Chen, Weiyu, Zhang, Bing, Mahony, Timothy, Gu, Wenyi, Rolfe, Barbara and Xu, Zhi Ping (2016). Vaccine Adjuvants: Efficient and Durable Vaccine against Intimin β of Diarrheagenic E. Coli Induced by Clay Nanoparticles (Small 12/2016). Small, 12 (12), 1541-1541. doi: 10.1002/smll.201670058
2016
Journal Article
Associations between animal characteristic and environmental risk factors and bovine respiratory disease in Australian feedlot cattle
Hay, K. E., Morton, J. M., Mahony, T. J., Clements, A. C. A. and Barnes, T. S. (2016). Associations between animal characteristic and environmental risk factors and bovine respiratory disease in Australian feedlot cattle. Preventive Veterinary Medicine, 125, 66-74. doi: 10.1016/j.prevetmed.2016.01.013
2016
Journal Article
Effects of exposure to Bovine viral diarrhoea virus 1 on risk of bovine respiratory disease in Australian feedlot cattle
Hay, K. E., Ambrose, R. C. K., Morton, J. M., Horwood, P. F., Gravel, J. L., Waldron, S., Commins, M. A., Fowler, E. V., Clements, A. C. A., Barnes, T. S. and Mahony, T. J. (2016). Effects of exposure to Bovine viral diarrhoea virus 1 on risk of bovine respiratory disease in Australian feedlot cattle. Preventive Veterinary Medicine, 126, 159-169. doi: 10.1016/j.prevetmed.2016.01.025
2016
Journal Article
The first genome sequence of a metatherian herpesvirus: Macropodid herpesvirus 1
Vaz, Paola K., Mahony, Timothy J., Hartley, Carol A., Fowler, Elizabeth V., Ficorilli, Nino, Lee, Sang W., Gilkerson, James R., Browning, Glenn F. and Devlin, Joanne M. (2016). The first genome sequence of a metatherian herpesvirus: Macropodid herpesvirus 1. BMC Genomics, 17 (1) 70, 70. doi: 10.1186/s12864-016-2390-2
2016
Journal Article
Correction: Silica Vesicle Nanovaccine Formulations Stimulate Long-Term Immune Responses to the Bovine Viral Diarrhoea Virus E2 Protein (vol 10, e0143507, 2015)
Mody, Karishma T., Mahony, Donna, Cavallaro, Antonino S., Zhang, Jun, Zhang, Bing, Mahony, Timothy J., Yu, Chengzhong and Mitter, Neena (2016). Correction: Silica Vesicle Nanovaccine Formulations Stimulate Long-Term Immune Responses to the Bovine Viral Diarrhoea Virus E2 Protein (vol 10, e0143507, 2015). Plos One, 11 (1) e0146631, 1-1. doi: 10.1371/journal.pone.0146631
2016
Book Chapter
Betaherpesvirinae (Suid Herpesvirus 2)
Mahony, Timothy John (2016). Betaherpesvirinae (Suid Herpesvirus 2). Molecular detection of animal viral pathogens. (pp. 747-752) edited by Dongyou Liu. Boca Raton, FL, United States: CRC Press. doi: 10.1201/b19719-1
2016
Journal Article
Prevalence of Campylobacter spp. in diarrhoea samples from patients in New South Wales, Australia
Devi, Aruna, Gunjilac, Adam S., Wilkinson, Jenny M., Vanniasinkam, Thiru and Mahony, Timothy J. (2016). Prevalence of Campylobacter spp. in diarrhoea samples from patients in New South Wales, Australia. International Microbiology, 19 (1), 33-37. doi: 10.2436/20.1501.01.261
2015
Journal Article
Silica vesicle nanovaccine formulations stimulate long-term immune responses to the bovine viral diarrhoea virus e2 protein
Mody, Karishma T., Mahony, Donna, Cavallaro, Antonino S., Zhang, Jun, Zhang, Bing, Mahony, Timothy J., Yu, Chengzhong and Mitter, Neena (2015). Silica vesicle nanovaccine formulations stimulate long-term immune responses to the bovine viral diarrhoea virus e2 protein. PLoS One, 10 (12) e0143507, 1-16. doi: 10.1371/journal.pone.0143507
2015
Journal Article
Immunisation of Sheep with Bovine Viral Diarrhoea Virus, E2 Protein Using a Freeze-Dried Hollow Silica Mesoporous Nanoparticle Formulation
Mahony, Donna, Mody, Karishma T., Cavallaro, Antonino S., Hu, Qiuhong, Mahony, Timothy J., Qiao, Shizhang and Mitter, Neena (2015). Immunisation of Sheep with Bovine Viral Diarrhoea Virus, E2 Protein Using a Freeze-Dried Hollow Silica Mesoporous Nanoparticle Formulation. Plos One, 10 (11) e0141870, e0141870. doi: 10.1371/journal.pone.0141870
2015
Journal Article
Characterisation of the Equine adenovirus 2 genome
Giles, Carla, Vanniasinkam, Thiru, Barton, Mary and Mahony, Timothy J. (2015). Characterisation of the Equine adenovirus 2 genome. Veterinary Microbiology, 179 (3-4), 184-189. doi: 10.1016/j.vetmic.2015.07.024
2015
Journal Article
Understanding the molecular basis of disease is crucial to improving the design and construction of herpesviral vectors for veterinary vaccines
Mahony, T. J. (2015). Understanding the molecular basis of disease is crucial to improving the design and construction of herpesviral vectors for veterinary vaccines. Vaccine, 33 (44), 5897-5904. doi: 10.1016/j.vaccine.2015.09.028
2015
Journal Article
Identification of non-essential loci within the Meleagrid herpesvirus 1 genome
Hall, Robyn N., Meers, Joanne, Fowler, Elizabeth V. and Mahony, Timothy J. (2015). Identification of non-essential loci within the Meleagrid herpesvirus 1 genome. Virology Journal, 12 (1) 130, 130.1-130.12. doi: 10.1186/s12985-015-0362-9
2015
Journal Article
Genomic deletions and mutations resulting in the loss of eight genes reduce the in vivo replication capacity of Meleagrid herpesvirus 1
Mahony, Timothy J., Hall, Robyn N., Walkden-Brown, Stephen, Meers, Joanne, Gravel, Jennifer L., West, Lani, Hardy, Vanessa, Islam, A. F. M. Fakhrul, Fowler, Elizabeth V. and Mitter, Neena (2015). Genomic deletions and mutations resulting in the loss of eight genes reduce the in vivo replication capacity of Meleagrid herpesvirus 1. Virus Genes, 51 (1), 85-95. doi: 10.1007/s11262-015-1216-7
2015
Journal Article
Antimicrobial susceptibility of Histophilus somni isolated from clinically affected cattle in Australia
Goldspink, L. K., Mollinger, J. L., Barnes, T. S., Groves, M., Mahony, T. J. and Gibson, J. S. (2015). Antimicrobial susceptibility of Histophilus somni isolated from clinically affected cattle in Australia. Veterinary Journal, 203 (2), 239-243. doi: 10.1016/j.tvjl.2014.12.008
2015
Book Chapter
Herpesvirus mutagenesis facilitated by infectious bacterial artificial chromosomes (iBACs)
Robinson, Karl E. and Mahony, Timothy J. (2015). Herpesvirus mutagenesis facilitated by infectious bacterial artificial chromosomes (iBACs). Bacterial artificial chromosomes. (pp. 181-197) edited by Kumaran Narayanan. New York, NY, United States: Springer Science+Business Media. doi: 10.1007/978-1-4939-1652-8_8
Funding
Current funding
Supervision
Availability
- Professor Timothy Mahony is:
- Available for supervision
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Available projects
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The development of strand-specific sequencing methodologies double-stranded DNA viral genomes
The herpesviruses are a large family of viruses that infected a broad range of hosts, such as mammals, reptiles, and molluscs. These viruses have a large double stranded DNA (dsDNA) genome. While the herpesviruses are considered to be genetically stable, variants with increased capacity to cause disease have emerged. The molecular basis underpinning the emergence of these virulent subtypes/genotypes for several herpesviruses of importance to veterinary medicine remains poorly understood. This project will utilise Oxford Nanopore sequencing technology to develop strategies to enable the strand-specific sequencing of herpesvirus genomes. The availability of strand-specific sequence data will be used to determine if the emergence of new genotypes of herpesviruses is a result of spontaneous mutation or the selection of existing genetic diversity within a viral isolate. This new knowledge will improve our understanding of this important virus family.
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The application of gene editing to improve animal resistance to infections
Gene editing technologies have enabled the rapid and specific modification of the genomes of complex organisms. Projects are available that will focus on the application of gene editing to increase the resilience of livestock cells to pathogens which reduce productivity. These projects will enable the candidate to gain experience in mammalian cell culture, transfection, growth and titration of viruses, molecular cloning, Western blotting, quantitative real-time PCR, genomic analyses, and fluorescence microscopy. These studies will improve our understanding of host/pathogen interactions towards the development of more resilient livestock.
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The application of synthetic biology to large DNA viral genomes
The capacity to manipulate the genomes of viruses in the laboratory remains dependent on their in vitro replication efficiency. This limitation has hindered our attempts better understand many of these viruses. This project will address this issue by applying long range PCR and DNA fragment assembly to construction copies of selected herpesviral genomes. The capacity of these genomes to facilitate rescue of infectious virus will also be determined. The availability of these infectious genome copies will aide in the development of improved diagnostics and control methods for these currently difficult to work with viruses.
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Characterisation of bovine herpesvirus 2 genome
Bovine herpesvirus 2 (BoHV-2) is associated with mastitis in cattle. Of all of the herpesviruses which infect cattle, BoHV-2 is by far the most poorly characterised. This project will address this knowledge gap by using next generation sequencing and conventional PCR and sequencing technologies to completely sequence the BoHV-2 genome. The results of this project will enable the genome-wide comparisons of the BoHV-2 genome to other bovine and mammalian herpesviruses. These comparisons will improve our understanding of host/virus interactions at the molecular level for important viral properties such as tissue tropism and virulence.
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Construction of bovine herpesvirus 5 infectious clone
Bovine herpesvirus 1 (BoHV-5) is a neurotrophic which is associated with severe and fatal disease in young cattle. Unlike bovine herpesvirus 1, BoHV-5 occurs sporadically in the world’s cattle population, except in South America. In this project, you will utilise genome edit tools, such as CRISPR/Cas9, to manipulate the BoHV-5 genome to construct an infectious clone of the virus. The results of this project will provide a better understanding of gene function in BoHV-5, particularly in respect to virulence. This information will improve our understand of how BoHV-5 interacts with its host at the molecular level and lead to the development of improved control strategies.
Supervision history
Current supervision
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Doctor Philosophy
The application of genome editing to improve the disease resilience of livestock species
Principal Advisor
Other advisors: Dr Karishma Mody
-
Doctor Philosophy
Modelling superior phenotypes through the identification and exploitation of genomic safe harbours in cattle.
Principal Advisor
Other advisors: Dr Karl Robinson
-
Doctor Philosophy
Development of a viral vector vaccine for Australian flying foxes
Principal Advisor
Other advisors: Professor Joanne Meers
-
Doctor Philosophy
Modelling superior phenotypes through the identification and exploitation of genomic safe harbours in cattle.
Principal Advisor
Other advisors: Dr Karl Robinson
-
Doctor Philosophy
Modelling superior phenotypes through the identification and exploitation of genomic safe harbours in cattle.
Principal Advisor
Other advisors: Dr Karl Robinson
-
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
-
Doctor Philosophy
Innovative RNAi for ectoparasites of livestock
Associate Advisor
Other advisors: Dr Karl Robinson, Dr Karishma Mody
-
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
-
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
-
Doctor Philosophy
Characterisation of a novel flying fox retrovirus
Associate Advisor
Other advisors: Professor Joanne Meers, Dr Lee McMichael
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Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
-
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
Completed supervision
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2025
Doctor Philosophy
Modelling superior phenotypes through the identification and exploitation of genomic safe harbours in cattle.
Principal Advisor
Other advisors: Dr Karl Robinson
-
2024
Master Philosophy
The Development of a Novel Approach for the Differentiation of Bovine herpesvirus 1 field and vaccine strains
Principal Advisor
Other advisors: Dr Karl Robinson
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2021
Doctor Philosophy
Identification of Molecular Factors Influencing Bovine alphaherpesvirus type 1 Replication Capacity and Virulence
Principal Advisor
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2020
Doctor Philosophy
Immunological Difference In Bovine Respiratory Disease Susceptibility
Principal Advisor
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2014
Doctor Philosophy
Investigating Genetic Components of Meleagrid herpesvirus 1 for Viral Vector Applications for the Poultry Industry
Principal Advisor
Other advisors: Professor Joanne Meers
-
2009
Doctor Philosophy
The development of a novel methodology for the delivery of DNA vaccines using the herpesvirus protein VP22
Principal Advisor
-
2025
Doctor Philosophy
Sustainable Control of the Australian Blowfly Using Topical RNA Interference
Associate Advisor
Other advisors: Dr Karishma Mody
-
2018
Doctor Philosophy
Application of clay nanoparticles as efficient adjuvant in vaccine against pathogenic diarrheagenic E. Coli
Associate Advisor
Other advisors: Associate Professor Barbara Rolfe
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2015
Doctor Philosophy
Epidemiology of bovine respiratory disease in Australian feedlot cattle
Associate Advisor
-
2015
Doctor Philosophy
Mycoplasma bovis in Australian feeder cattle
Associate Advisor
Other advisors: Dr Justine Gibson
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2015
Doctor Philosophy
Development of Nanoparticle based Vaccine Delivery Systems
Associate Advisor
Other advisors: Professor Michael Yu
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2011
Master Philosophy
Molecular Characterisation and Expression of the H5 and N1 Genes of an Indonesian Avian Influenza Virus Isolate
Associate Advisor
Other advisors: Professor Joanne Meers
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2009
Doctor Philosophy
The essential and nonessential genes of Bovine herpesvirus-1
Associate Advisor
Other advisors: Professor Joanne Meers
Media
Enquiries
Contact Professor Timothy Mahony directly for media enquiries about:
- Animal vaccines
- Animals - viral diseases
- Vaccines - animals
- Viral diseases - animals
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