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Abstract

Escherichia coli O157:H7 (VTEC O157) persists in being a threat to food safety. The mechanisms behind the spread of VTEC O157 are complex and poorly understood. The objective of this study was to construct a model to simulate the propagation of VTEC O157 in cattle and sheep on the farm and to use...

Author(s)
Stacey, K. F.; Parsons, D. J.; Christiansen, K. H.; Burton, C. H.
Publisher
Society for Veterinary Epidemiology and Preventive Medicine, Roslin, UK
Citation
Society for Veterinary Epidemiology and Preventive Medicine. Proceedings of a meeting held at Exeter, UK, 29-31 March 2006, 2006, pp 87-103
Abstract

Cattle herds in Great Britain (GB) are routinely tested for bovine tuberculosis (bTB) using the single intradermal comparative cervical test (SICCT). The interval between testing varies according to the bTB history of the parish in which the herd resides and may be one, two, three or four years,...

Author(s)
Mitchell, A. P.; Green, L. E.; Clifton-Hadley, R.; Mawdsley, J.; Sayers, R.; Medley, G. F.
Publisher
Society for Veterinary Epidemiology and Preventive Medicine, Roslin, UK
Citation
Society for Veterinary Epidemiology and Preventive Medicine. Proceedings of a meeting held at Exeter, UK, 29-31 March 2006, 2006, pp 70-86
Abstract

A milk quality assurance programme for Mycobacterium avium subsp. paratuberculosis (Map) in dairy herds was simulated with a stochastic simulation model. Herds were certified as 'low-Map bulk milk' if, with a certain probability, the concentration of Map in bulk milk did not exceed a maximum...

Author(s)
Weber, M. F.; Roermund, H. J. W. van; Velthuis, A. G. J.; Koeijer, A. A. de; Jong, M. C. M. de; Nielen, M.
Publisher
Society for Veterinary Epidemiology and Preventive Medicine, Roslin, UK
Citation
Society for Veterinary Epidemiology and Preventive Medicine. Proceedings of a meeting held at Exeter, UK, 29-31 March 2006, 2006, pp 25-38
Abstract

The East Sussex county in the south-eastern part of England has been traditionally regarded as a 'hot-spot' for bovine tuberculosis, although adjacent counties are apparently free of the disease. In this study a comprehensive epidemiological analysis of Mycobacterium bovis infections in cattle and...

Author(s)
Soares-Magalhaes, R.; Smith, N. H.; Dale, J.; Gover, K.; Mitchell, A.; Mawdsley, J.; Stoker, N. G.
Publisher
Society for Veterinary Epidemiology and Preventive Medicine, Roslin, UK
Citation
Society for Veterinary Epidemiology and Preventive Medicine. Proceedings of a meeting held at Exeter, UK, 29-31 March 2006, 2006, pp 215-227
Abstract

In this study, direct economic losses due to Neospora caninum infection, based on actual data from N. caninum seropositive reference herds and from herds that experienced an N. caninum- associated abortion epidemic, were calculated using a stochastic model with random elements. The results...

Author(s)
Bartels, C. J. M.; Hogeveen, H.; Schaik, G. van; Wouda, W.; Dijkstra, T.
Publisher
Society for Veterinary Epidemiology and Preventive Medicine, Roslin, UK
Citation
Society for Veterinary Epidemiology and Preventive Medicine. Proceedings of a meeting held at Exeter, UK, 29-31 March 2006, 2006, pp 191-201
Abstract

Field data were used to estimate number of days with faecal excretion of Salmonella Dublin and time to seroconversion in infected calves below the age of 180 days. Based on these estimates, the calves in four endemically infected dairy herds were grouped into infection states: Susceptible (S),...

Author(s)
Nielsen, L. R.; Borne, B. H. P. van den; Schaik, G. van
Publisher
Society for Veterinary Epidemiology and Preventive Medicine, Roslin, UK
Citation
Society for Veterinary Epidemiology and Preventive Medicine. Proceedings of a meeting held at Exeter, UK, 29-31 March 2006, 2006, pp 179-190
Abstract

Some recorded movements of cattle and sheep during the initial phase of the 2001 Foot-and-Mouth Disease (FMD) outbreak in the UK, before the ban on animal movements was imposed, are analysed descriptively using Social Network Analysis (SNA) techniques. The phenomenon of diffusion within the network ...

Author(s)
Ortiz-Pelaez, A.; Pfeiffer, D. U.; Soares-Magalhães, R. J.; Guitian, F. J.
Publisher
Society for Veterinary Epidemiology and Preventive Medicine, Roslin, UK
Citation
Society for Veterinary Epidemiology and Preventive Medicine. Proceedings of a meeting held at Exeter, UK, 29-31 March 2006, 2006, pp 164-176
Abstract

Epidemiological data analysis is increasingly carried out using large datasets obtained from centralised, often government, databases containing national or regional denominator data. This highlights the vital issue of data quality assurance; how accurately do the data reflect the real situation?...

Author(s)
Honhold, N.; Taylor, N. M.
Publisher
Society for Veterinary Epidemiology and Preventive Medicine, Roslin, UK
Citation
Society for Veterinary Epidemiology and Preventive Medicine. Proceedings of a meeting held at Exeter, UK, 29-31 March 2006, 2006, pp 152-163
Abstract

In Chile, Mycobacterium avium subsp. paratuberculosis (Map) was isolated on several occasions and clinical cases were reported. Nevertheless, diagnostic tests were not yet validated. The objective of the study was to validate a commercial ELISA to detect Map shedding dairy cows in management...

Author(s)
Schaik, G. van; Haro, F.; Mella, A.; Kruze, J.
Publisher
Society for Veterinary Epidemiology and Preventive Medicine, Roslin, UK
Citation
Society for Veterinary Epidemiology and Preventive Medicine. Proceedings of a meeting held at Exeter, UK, 29-31 March 2006, 2006, pp 141-151
Abstract

Mathematical and economic models were used to assess the epidemiological and economic impact of the control strategies 'testing and culling of seropositive animals', 'discontinued breeding from offspring of seropositive cows', 'chemotherapy of calves' and 'vaccination of susceptible and infected...

Author(s)
Häsler, B.; Regula, G.; Stärk, K. D. C.; Sager, H.; Gottstein, B.; Reist, M.
Publisher
Society for Veterinary Epidemiology and Preventive Medicine, Roslin, UK
Citation
Society for Veterinary Epidemiology and Preventive Medicine. Proceedings of a meeting held at Exeter, UK, 29-31 March 2006, 2006, pp 13-24

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