Navigation

Researchers at UCD

Tracy Clegg

Research Funded Analyst

School Of Veterinary Medicine
Veterinary Science Centre
Belfield
Dublin 4

Tel: +353 1 7166142
Email: tracy.clegg@ucd.ie

Professional

         

Conference Contributions

Clegg, TA; Duignan, A; Good, M; More, SJ; (2014) The relative effectiveness of testers during field surveillance for bovine tuberculosis in Ireland. [Oral Presentation], Society for Veterinary Epidemiology and Preventive Medicine, Dublin, Ireland , 26-MAR-14 - 28-MAR-14.
Clegg, TA; Good, M; More, SJ; (2014) Future risk of bTB recurrence among high risk herds in Ireland. [Poster Presentation], VI International M.bovis conference, Cardiff, Wales , 16-JUN-14 - 19-JUN-14.
Clegg, TA; Good, M; Duignan, A; More, SJ (2011) Full herd depopulation and local badger removal during 2003-2005 lead to reduced risk of bovine tuberculosis in Irish herds. [Oral Presentation], Society for Veterinary Epidemiology and Preventive Medicine, Leipzig, Germany , 23-MAR-14 - 25-MAR-14.
Downes, M., Collins, D., Clegg, T., More, S. (2010) The Spatial Distribution of Pet Dogs & Cats in the Republic of Ireland. [Poster Presentation], Annual Conference of the Society for Veterinary Epidemiology and Preventive Medicine 2010, Nantes, France , 24-MAR-10 - 26-MAR-10.
Clegg, T., Good, M., Duignan, A. and More, S.J.; (2009) The relative effectiveness of, and reporting accuracy among, testers during field surveillance for bovine tuberculosis in Ireland. [Oral Presentation], 5th International Conference on Mycobacterium bovis, Wellington, New Zealand , 25-AUG-09 - 28-AUG-09.
Clegg, T. Duignan, A., Whelan, C., Gormley, E., Good, M., Clarke, J., Toft, N. and More, S.J.; (2009) Using latent class analysis to estimate the test characteristics of the interferon gamma test, the single intradermal comparative tuberculin test and a multiplex ELISA under Irish conditions. [Oral Presentation], 5th International Conference on Mycobacterium bovis, Wellington, New Zealand , 25-AUG-09 - 28-AUG-09.
Good, M., Clegg, T.A., Costello, E. and More, S.J.; (2009) The comparative performance of the single intradermal test and the single intradermal comparative tuberculin test in Irish cattle, using tuberculin PPD combinations of differing potencies. [Oral Presentation], 5th International Conference on Mycobacterium bovis, Wellington, New Zealand , 25-AUG-09 - 28-AUG-09.
Good, M., Clegg, T.A., Murphy, F. and More, S.J.; (2009) The comparative performance of the single intradermal comparative tuberculin test in Irish cattle, using tuberculin PPD combinations from different manufacturers. [Oral Presentation], 5th International Conference on Mycobacterium bovis, Wellington, New Zealand , 25-AUG-09 - 28-AUG-09.
More, S.J., Brangan, P., Aznar, I., Bailey, D.C., Larkin, J., Myers, T., Leadon, D.P., Lenihan, P., Fogarty, U., Flaherty, B. and Clegg, T.A.; (2008) Successful eradication of equine infectious anaemia from Ireland during 2006. [Oral Presentation], 36èmes Journeés Annuelles AVEF (Association Vétérinaire Équine Française), Reims, France , 09-OCT-08 - 11-OCT-08.
Clegg, T.A., More, S.J. and Higgins, I.; (2006) The benefit-cost of a pre-movement test. [Oral Presentation], 11th Symposium of International Society of Veterinary Epidemiology and Economics, Cairns, Australia , 07-AUG-06 - 11-AUG-06.
Higgins, I.M., More, S.J., Clegg T.A. and White, P.W.; (2006) Improved statistical measures for TB surveillance and control. [Oral Presentation], 11th Symposium of International Society of Veterinary Epidemiology and Economics, Cairns, Australia , 07-AUG-06 - 11-AUG-06.
Kelly G.E., Griffin J.M., Williams D.H., Clegg, T.A., Boyle I.O., Collins J.D., More S.J.; (2005) Badger removal and bovine tuberculosis - results from the Four Area Project. [Published Abstract], Conference of Applied Statistics in Ireland, (Queen's University Belfast), Enniskillen , 18-MAY-05 - 20-MAY-05.
               

Publications

     

Peer Reviewed Journals

Clegg, T.A., Duignan, A., More, S.J. (2015) 'The relative effectiveness of testers during field surveillance for bovine tuberculosis in unrestricted low-risk herds in Ireland'. Preventive Veterinary Medicine, 119 (1-2):85-89. [DOI] [Details]
Graham, D.A., Clegg, T.A., O'Sullivan, P., More, S.J. (2015) 'Survival time of calves with positive BVD virus results born during the voluntary phase of the Irish eradication programme'. Preventive Veterinary Medicine, 119 (3-4):123-133. [DOI] [Details]
Graham, D.A., Clegg, T.A., O'Sullivan, P., More, S.J. (2015) 'Influence of the retention of PI calves identified in 2012 during the voluntary phase of the Irish national bovine viral diarrhoea virus (BVDV) eradication programme on herd-level outcomes in 2013'. Preventive Veterinary Medicine, 120 (3-4):298-305. [DOI] [Details]
Barrett, D., O'Neill, R. Sammin, D., Clegg, T.A., More, S.J. (2015) 'The impact of infection with Schmallenberg virus on weaning rate in Irish sheep flocks'. Preventive Veterinary Medicine, . [Details]
Clegg, T.A., Good, M., More, S.J. (2015) 'Future risk of bovine tuberculosis recurrence among higher risk herds in Ireland'. Preventive Veterinary Medicine, 118 (1):71-79. [DOI] [Details]
Clegg, T.A., Morrissey, T., Geoghegan, F., Martin, S.W., Lyons, K., Ashe, S., More, S.J. (2014) 'Risk factors associated with increased mortality of farmed Pacific oysters in Ireland during 2011'. Preventive Veterinary Medicine, 113 (2):257-267. [DOI] [Details]
McGrath, G., Clegg, T.A., More, S.J. (2014) 'Recent spatial changes in bovine tuberculosis in the Republic of Ireland'. Veterinary Record, 175 :45-2. [DOI] [Details]
Canty, M.J., Scanlon, A., Collins, D.M., McGrath, G., Clegg, T.A., Lane, E., Sheridan, M.K., More, S.J. (2014) 'Cadmium and other heavy metal concentrations in bovine kidneys in the Republic of Ireland'. Science of the Total Environment, 485-486 :223-231. [DOI] [Details]
Clegg, T.A., Blake, M., Healy, R., Good, M., Higgins, I., More, S.J. (2013) 'The impact of animal introductions during herd restrictions on future herd-level bovine tuberculosis risk'. Preventive Veterinary Medicine, 109 (3-4):246-257. [DOI] [Details]
Kelly, PC,More, SJ,Blake, M,Higgins, I,Clegg, T,Hanlon, A (2013) 'Validation of key indicators in cattle farms at high risk of animal welfare problems: a qualitative case-control study'. Veterinary Record, 172 . [DOI] [Details]
Gormley, E., Doyle, M., Duignan, A., Good, M., More, S.J., Clegg, T. (2013) 'Identification of risk factors associated with disclosure of false positive bovine tuberculosis reactors using the gamma-interferon (IFNγ) assay'. Veterinary Research, 44 . [DOI] Link to full text [Details]
Graham, D.A., Clegg, T.A., Lynch, M., More, S.J. (2013) 'Herd-level factors associated with the presence of bovine viral diarrhoea virus in herds participating in the voluntary phase of the Irish national eradication programme'. Preventive Veterinary Medicine, 112 (1-2):99-108. [DOI] [Details]
Gallagher, M.J., Higgins, I.M., Clegg, T.A., Williams, D.H., More, S.J. (2013) 'Comparison of bovine tuberculosis recurrence in Irish herds between 1998 and 2008'. Preventive Veterinary Medicine, 111 (3-4):237-244. [DOI] [Details]
More, S.J., Clegg, T.A., Lynch, P.J., O'Grady, L. (2013) 'The effect of somatic cell count data adjustment and interpretation, as outlined in EU legislation, on herd eligibility to supply raw milk for processing of dairy products'. Journal of Dairy Science, 96 (6):3671-3681. [DOI] [Details]
Kelly, P.C., More, S.J., Blake, M., Higgins, I., Clegg, T.A., Hanlon, A.J. (2013) 'Validation of key indicators on cattle farms at high risk of animal welfare problems - a qualitative case-control study'. Veterinary Record, 172 (12). [DOI] [Details]
More, S.J., Clegg, T.A., O'Grady, L. (2012) 'Insights into udder health and intramammary antibiotic usage on Irish dairy farms during 2003-2010'. Irish Veterinary Journal, 65 . [DOI] Link to full text [Details]
Cowley, D.J.B.., Clegg, T.A., Doherty, M.L., More, S.J.; (2012) 'Bovine viral diarrhoea virus seroprevalence and vaccination usage in dairy and beef herds in the Republic of Ireland'. Irish Veterinary Journal, 65 . [DOI] Link to full text [Details]
Murray, D., Clegg, T.A., More, S.J. (2012) 'Analysis of single reactor bovine tuberculosis breakdowns based on analysis of reactors slaughtered at an Irish export meat plant'. Veterinary Record, 170 (20). [DOI] [Details]
Good, M., Clegg, T.A., Costello, E., More, S.J.; (2011) 'The comparative performance of the single intradermal test and the single intradermal comparative tuberculin test in Irish cattle, using tuberculin PPD combinations of different potencies'. The Veterinary Journal, 190 (2):e60-e65. [DOI] [Details]
Ryan, ED,Kirby, M,Collins, DM,Sayers, R,Mee, JF,Clegg, T; (2011) 'Prevalence of Coxiella burnetii (Q fever) antibodies in bovine serum and bulk-milk samples'. Epidemiology and infection, 139 :1413-1417. [DOI] [Details]
Ryan, E,Kirby, M,Clegg, T,Collins, DM; (2011) 'Seroprevalence of Coxiella burnetii antibodies in sheep and goats in the Republic of Ireland'. Veterinary Record, 169 . [DOI] [Details]
Barrett, DJ,Mee, JF,Mullowney, P,Good, M,McGrath, G,Clegg, T,More, SJ; (2011) 'Risk factors associated with Johne's disease test status in dairy herds in Ireland'. Veterinary Record, 168 . [DOI] [Details]
Downes, M.J., Clegg, T.A., Collins, D.M., McGrath, G., More, S.J.; (2011) 'The spatial distribution of pet dogs and pet cats on the island of Ireland'. BMC Veterinary Research, 7 . [DOI] [Details]
Clegg, TA,Good, M,Duignan, A,Doyle, R,Blake, M,More, SJ; (2011) 'Longer-term risk of Mycobacterium bovis in Irish cattle following an inconclusive diagnosis to the single intradermal comparative tuberculin test'. Preventive Veterinary Medicine, 100 :147-154. [DOI] [Details]
Cowley, D.J.B., Clegg, T.A., Doherty, M.L., More, S.J.; (2011) 'Aspects of bovine herpesvirus-1 infection in dairy and beef herds in the Republic of Ireland'. Acta Veterinaria Scandinavica, 53 . [DOI] Link to full text [Details]
Good, M., Clegg, T.A., Duignan, A., More, S.J.; (2011) 'The impact of the national herd depopulation policy on the persistence of bovine tuberculosis in Irish herds during 2003-2005'. Veterinary Record, 169 (22). [DOI] [Details]
Clegg, T.A., Good, M., Duignan, A., Doyle, R., More, S.J.; (2011) 'Shorter-term risk of Mycobacterium bovis in Irish cattle following an inconclusive diagnosis to the single intradermal comparative tuberculin test'. Preventive Veterinary Medicine, 102 (4):255-264. [DOI] [Details]
Clegg, T.A., Duignan, A., Whelan, C., Gormley, E., Good, M., Clarke, J., Toft, N., More, S.J.; (2011) 'Using latent class analysis to estimate the test characteristics of the γ-interferon test, the single intradermal comparative tuberculin test and a multiplex ELISA under Irish conditions'. Veterinary Microbiology, 151 (1-2):68-76. [DOI] [Details]
Good, M., Clegg, T.A., Murphy, F., More, S.J.; (2011) 'The comparative performance of the single intradermal comparative tuberculin test in Irish cattle, using tuberculin PPD combinations from different manufacturers'. Veterinary Microbiology, 151 (1-2):77-84. [DOI] [Details]
Lee, B-Y., Higgins, I.M., Moon, O-K., Clegg, T.A, McGrath, G., Collins, D.M., Park, J-Y., Yoon, H-C., Lee, S-J. and More, S.J.; (2009) 'Surveillance and control of bovine brucellosis in the Republic of Korea during 2000 to 2006'. Preventive Veterinary Medicine, 90 (1-2):66-79. [DOI] [Details]
Good, M,Clegg, T,Sheridan, H,Yearsely, D,O'Brien, T,Egan, J,Mullowney, P; (2009) 'Prevalence and distribution of paratuberculosis (Johne's disease) in cattle herds in Ireland'. VET J, 62 :597-606. Link to full text [Details]
Sleeman, DP,Davenport, J,More, SJ,Clegg, TA,Griffin, JM,O'Boyle, I; (2009) 'The effectiveness of barriers to badger Meles meles immigration in the Irish Four Area project'. European Journal of Wildlife Research, 55 :267-278. [DOI] [Details]
Sleeman, DP,Davenport, J,More, SJ,Clegg, TA,Collins, JD,Martin, SW,Williams, DH,Griffin, JM,O'Boyle, I; (2009) 'How many Eurasian badgers Meles meles L. are there in the Republic of Ireland?'. European Journal of Wildlife Research, 55 :333-344. [DOI] [Details]
Corner, L.A.L., Clegg, T.A., More, S.J., O'Boyle, I., Costello, E., Sleeman, D.P. and Griffin, J.M.; (2008) 'The effect of varying levels of population control on the prevalence of tuberculosis in badgers in Ireland'. Research in Veterinary Science, 85 (2):238-249. [DOI] [Details]
More, SJ,Aznar, I,Myers, T,Leadon, DP,Clegg, TA; (2008) 'An outbreak of equine infectious anaemia in Ireland during 2006: The modes of transmission and spread in the Kildare cluster'. VET J, 40 :709-711. [DOI] [Details]
Clegg, TA,More, SJ,Higgins, IM,Good, M,Blake, M,Williams, DH; (2008) 'Potential infection-control benefit for Ireland from pre-movement testing of cattle for tuberculosis'. Preventive Veterinary Medicine, 84 :94-111. [DOI] [Details]
Chapwanya, A,Clegg, T,Stanley, P,Vaughan, L; (2008) 'Comparison of the Immulite and RIA assay methods for measuring peripheral blood progesterone levels in Greyhound bitches'. Theriogenology, 70 :795-799. [DOI] [Details]
O'Grady L, O'Neill R, Collins DM, Clegg TA, More SJ; (2008) 'Herd and within-herd BoHV-1 prevalence among Irish beef herds submitting bulls or entry to a performance testing station'. Irish Veterinary Journal, . [Details]
O'Grady. L., O'Neill, R., Collins, D.M., Clegg, T.A. and More, S.J. ; (2008) 'Herd and within-herd IBR prevalence among Irish herds submitting bulls for entry to a bull performance testing station'. Irish Veterinary Journal, 61 (12):809-815. [DOI] [Details]
More, S.J., Clegg, T.A., McGrath, G., Collins, J.D., Corner, L.A.L. and Gormley, E.; (2007) 'Does reactive badger culling control TB in cattle?'. Veterinary Record, 161 :208-209. [DOI] [Details]
Barrett D.J., Clegg T., Healy A.M., Doherty M.L.; (2006) 'A study of dry cow therapy and effects on SCC in 10 Irish dairy herds'. Journal of Veterinary Medicine, 53 :140-144. [Details]
Murphy, TM,Fahy, KN,McAuliffe, A,Forbes, AB,Clegg, TA,O'Brien, DJ; (2006) 'A study of helminth parasites in culled cows from Ireland'. Preventive Veterinary Medicine, 76 :1-10. [DOI] [Details]
Costello, E,Flynn, O,Quigley, F,O'Grady, D,Griffin, J,Clegg, T,McGrath, G; (2006) 'Genotyping of Mycobacterium bovis isolates from badgers in four areas of the Republic of Ireland by restriction fragment length polymorphism analysis'. Veterinary Record, 159 :619-623. [Details]
Puggioni, A., Arnett, R., Clegg, T., Glyde, M., Tobin, E., McAllister, H.; (2006) 'Influence of patient positioning on the L5'L6 mid-laminar distance'. Veterinary Radiology and Ultrasound, 47 (5):449-452. [Details]
Griffin, J. M. , Williams, D. H. , Kelly, G. E. , Clegg, T. A. , O'Boyle, I. , Collins, J. D. , More, S. J.; (2005) 'The impact of badger removal on the control of tuberculosis in cattle herds in Ireland'. Cattle Practice, 13 (4):381-400. [Details]
Griffin, J. M. , Williams, D. H. , Kelly, G. E. , Clegg, T. A. , O'Boyle, I. , Collins, J. D. , More, S. J.; (2005) 'The impact of badger removal on the control of tuberculosis in cattle herds in Ireland'. Cattle Practice, :381-399. [Details]
Griffin, JM; More, SJ; Clegg, TA; Collins, JD; O'Boyle, I; Williams, DH; Kelly, GE; Costello, E; Sleeman, DP; O'Shea, F; Duggan, M; Murphy, J; Lavin, DPT; ; (2005) 'Tuberculosis in cattle: the results of the four-area project'. Irish Veterinary Journal, 58 (11):629-636. [Details]
Griffin, JM; Williams, DH; Kelly, GE; Clegg, TA; O'Boyle, I; Collins, JD; More, SJ; ; (2005) 'The impact of badger removal on the control of tuberculosis in cattle herds in Ireland'. Preventive Veterinary Medicine, 67 (4):237-266. [Details]
Minihan, D,Whyte, P,O'Mahony, M,Clegg, T,Collins, JD; (2003) 'Escherichia coli O157 in Irish feedlot cattle: A longitudinal study involving preharvest and harvest phases of the food chain'. Food, 23 :167-178. [Details]
 

Conference Publications

Harley, S.; Boyle, L.; O¿Connell, N.; Moore, S.; Clegg, T.A.; Teixeira, D.; Whyte, P.; Hanlon, A. (2013) Evaluating the potential of abattoir meat inspection as an animal welfare surveillance tool UFAW International Animal Welfare Science Symposium [Details]
Boyle, L.; Harley, S.; O¿Connell, N.; Moore, S.; Clegg, T.A.; Whyte, P.; Teixeira, D.; Hanlon, A. (2013) Incorporation of welfare lesions in slaughter pigs to the meat inspection process 15th International Conference on Production Diseases in Farm Animals [Details]
Clegg, T.A., Duignan, A., Good, M., More, S.J. (2014) The relative effectiveness of testers during field surveillance for bovine tuberculosis in Ireland . In: Mintiens, K., Parkin, T.D.H eds. Annual Conference, Society for Veterinary Epidemiology and Preventive Medicine Dublin, Ireland, , 26-MAR-14 - 28-MAR-14 , pp.234-244 [Details]
Boyle, L., Harley, S., O¿Connell, N.E., More, S.J., Clegg, T.A., Whyte, P., Teixeira, D., Hanlon, A. (2012) A cross-sectional study of the prevalence, interrelationship and economic effect of welfare lesions in slaughter pigs in Ireland Annual Conference of the Association of Veterinary Teachers and Research Workers [Details]
Boyle, L., Harley, S., O¿Connell, N.E., More, S.J., Clegg, T.A., Whyte, P., Teixeira, D., Hanlon, A (2012) A cross-sectional study of the prevalence, interrelationship and economic effect of welfare lesions in slaughter pigs in Ireland Annual Conference of the Association of Veterinary Teachers and Research Workers [Details]
Good, M., Clegg, T.A., Duignan, A., More, S.J. ; (2011) Full herd depopulation and local badger removal during 2003-2005 leads to reduced bTB risk in Irish herds Annual Conference, Society for Veterinary Epidemiology and Preventive Medicine , pp.256-265 Available Online [Details]
Clegg, T.A., Duignan, A., Whelan, C., Gormley, E., Good, M., Clarke, J., Toft, N. and More, S.J.; (2009) Using latent class analysis to estimate the test characteristics of the interferon gamma test, the single intradermal comparative tuberculin test and a multiplex ELISA under Irish conditions 5th International Conference on Mycobacterium bovis Wellington, New Zealand, [Details]
Clegg, T.A., Good, M., Duignan, A., More, S.J.; (2009) The relative effectiveness of, and reporting accuracy among, testers during field surveillance for bovine tuberculosis in Ireland 5th International Conference on Mycobacterium bovis Wellington, New Zealand, [Details]
Barrett, D,Mee, J,Good, M,Mullowney, P,Clegg, T,More, S (2008) CATTLE PRACTICE Risk Factors for Johne's Disease in Irish Dairy Herds: A Case-Control Study , pp.209-215 [Details]
Clegg, T.A., More, S.J. and Higgins, I.; (2006) The benefit-cost of a pre-movement test 2006 ISVEE 11: Proceedings of the 11th Symposium of the International Society for Veterinary Epidemiology and Economics Cairns, Australia, Available Online [Details]
Higgins, I.M., More, S.J., Clegg T.A. and White, P.W.; (2006) Improved statistical measures for TB surveillance and control 2006 ISVEE 11: Proceedings of the 11th Symposium of the International Society for Veterinary Epidemiology and Economics Cairns, Australia, Available Online [Details]
Ferris, J., MacAuliffe, A., Clegg, T.A. and O¿Brien, D.J.; (2006) The seroprevalence of Neospora caninum in the Irish cattle herds 11th Symposium of the International Society for Veterinary Epidemiology and Economics Cairns, Australia, [Details]
Puggioni A., Arnett R., Clegg T., Glyde M., McAllister H. (2005) Correlation between dog position and mid- laminar distance at L5-L6 EAVDI Annual conference [Details]
Griffin, J.M. , Clegg, T.A. , Kelly, G.E. , Williams, D.H., O'Boyle, I. , Collins, J.D. , More, S.J.; (2005) The impact of badger removal on the control of tuberculosis in cattle herds in Ireland Annual Conference, Society for Veterinary Epidemiology and Preventive Medicine Nairn, Scotland, Available Online [Details]
Griffin, J.M., Collins, J.D., Williams, D.H. Kelly, G., Clegg, T., Quigley, F., Costello, E., Hammond, R.F., McGrath, G.. and Sleeman, D.P.; (2003) A field trial to assess the impact of badger removal on tuberculosis levels in cattle in four geographical areas in Ireland 10th Symposium of International Society of Veterinary Epidemiology and Economics Chile, [Details]
Murphy, T.M., Mc Auliffe, A., Clegg, T. and O¿Brien, D.J.; (2002) Resistance of Dermanyssus gallinae, the poultry red mite, to insecticides on Irish farms Proceedings of EU COST Action 833 Conference Bari, italy, [Details]
                                           

Research Papers

Clegg, T., Griffin, J.M., Quigley, F., Hammond, R.F., Towey, K.P., McGrath, G., Sleeman, D.P. and Costello, E.; (2004) The Four Area Badger Study: A Progress Report, 1996 - 2000. Dublin: Research Papers [Details]