1. Akkina, JE, et al. Epidemiologic aspects, control, and importance of multiple-drug resistant Salmonella Typhimurium DT104 in the United States. Journal of the American Veterinary Medical Association 1999; 214: 790–798.
2. Ekperigin, HE, Nagaraja, KV. Salmonella. Veterinary Clinics of North America: Food Animal Practice 1998; 14: 17–27.
3. Wray, C, Davies, RH. Salmonella infections in cattle. In: Wray, C, Wray, A eds. Salmonella in Domestic Animals. Wallingford: CABI Publishing, 2000, pp. 169–190.
4. Anon. Salmonella in livestock production in GB 2000. Addlestone, Surrey, UK: Veterinary Laboratories Agency, 2001.
5. Kabagambe, EK, et al. Risk factors for fecal shedding of Salmonella in 91 U.S. dairy herds in 1996. Preventive Veterinary Medicine 2000; 43: 177–194.
6. Warnick, LD, et al. Risk factors for clinical salmonellosis in Virginia, USA cattle herds. Preventive Veterinary Medicine 2001; 49: 259–275.
7. Davies, RH. A two year study of Salmonella typhimurium DT 104 infection and contamination on cattle farms. Cattle Practice 1997; 5: 189–194.
8. Huston, CL, Wittum, TE, Love, BC. Persistent fecal Salmonella shedding in five dairy herds. Journal of the American Veterinary Medical Association 2002; 220: 650–655.
9. Gibbens, J. Multi-resistant Salmonella Typhimurium DT 104 infection in cattle. State Veterinary Journal 1998; 8: 14–16.
10. Sato, K, et al. Spatial and temporal clustering of Salmonella serotypes isolated from adult diarrheic dairy cattle in California. Journal of Veterinary Diagnostic Investigation 2001; 13: 206–212.
11. Wilson, JS, et al. Nontyphoidal Salmonellae in United Kingdom badgers: prevalence and spatial distribution. Applied and Environmental Microbiology 2003; 69: 4312–4315.
12. Anderson, RJ, et al. Case-control study of an outbreak of clinical disease attributable to Salmonella menhaden infection in eight dairy herds. Journal of the American Veterinary Medical Association 1997; 210: 528–530.
13. Davis, MA, et al. Feedstuffs as a vehicle of cattle exposure to Escherichia coli O157:H7 and Salmonella enterica. Veterinary Microbiology 2003; 95: 199–210.
14. Jones, PW. Animal health today – problems of large livestock units. Disease hazards associated with slurry disposal. British Veterinary Journal 1980; 136: 529–541.
15. Murray, CJ. Environmental aspects of Salmonella. In: Wray, C, Wray, A eds. Salmonella in Domestic Animals. Wallingford: CABI Publishing, 2000, pp. 265–284.
16. Davison, HC, et al. Prevalence, incidence and geographical distribution of serovars of Salmonella on dairy farms in England and Wales. Veterinary Record 2005; 157: 703–711.
17. Davison, HC, et al. Risk factors associated with the salmonella status of dairy farms in England and Wales. Veterinary Record 2006; 159: 871–880.
18. Diggle, PJ, Chetwynd, AG. Second-order analysis of spatial clustering for inhomogeneous populations. Biometrics 1991; 14: 1155–1163.
19. Ripley, BD. The second-order analysis of stationary point processes. Journal of Applied Probability 1976; 13: 255–266.
20. Rowlingson, BS, Diggle, PJ. SPLANCS: spatial point pattern analysis code in S-plus. Computers and Geosciences 1993; 19: 627–655.
21. Diggle, PJ. Statistical Analysis of Spatial Point Patterns, 2nd edn. Oxford: Hodder Arnold, 2003.
22. Barnard, GA. Contribution to the discusssion of Professor Bartlett's paper. Journal of the Royal Statistical Society, Series B 1963; 25: 294.
23. Besag, J, Diggle, PJ. Simple Monte Carlo tests for spatial pattern. Applied Statistics 1977; 26: 327–333.
24. Cox, DR, Miller, HD. The Theory of Stochastic Processes. London: Chapman and Hall, 1965.
25. McCullagh, P, Nelder, JA. Generalized linear models. In Monographs on Statistics and Applied Probability. Cambridge: Chapman and Hall, 1989.
26. Graham, SL, et al. Spatial distribution of antibodies to Salmonella enterica serovar Typhimurium O antigens in bulk milk from Texas dairy herds. Preventive Veterinary Medicine 2005; 69: 53–61.
27. Wray, C, et al. Salmonella infection in badgers in the southwest of England. British Veterinary Journal 1977; 133: 526–529.
28. Čížek, A, et al. Salmonella contamination of the environment and its incidence in wild birds. Journal of Veterinary Medicine, Series B 1994; 41: 320–327.
29. Fenlon, DR. Seagulls (Larus spp.) as vectors of Salmonellae: an investigation into the range of serotypes and numbers of Salmonellae in gull faeces. Journal of Hygiene 1981; 86: 195–202.
30. Daniels, MJ, Hutchings, MR, Greig, A. The risk of disease transmission to livestock posed by contamination of farm stored feed by wildlife excreta. Epidemiology and Infection 2003; 130: 561–568.
31. Van Schaik, G, et al. Transmission of Salmonella in dairy herds quantified in the endemic situation. Veterinary Research 2007; 38: 861–869.
32. Pascoe, S. Salmonella in cattle in Great Britain: analysis of data from a cohort study of Salmonella infection in dairy herds [Dissertation]. London, UK: University of London, 2001.
33. Prince, MI, et al. The geographical distribution of primary biliary cirrhosis in a well-defined cohort. Hepatology 2001; 34: 1083–1088.
34. O'Brien, DJ, et al. Spatial and temporal distribution of selected canine cancers in Michigan, USA, 1964–1994. Preventive Veterinary Medicine 1999; 42: 1–15.