1. Qadri, F, et al. Enterotoxigenic Escherichia coli in developing countries: epidemiology, microbiology, clinical features, treatment, and prevention. Clinical Microbiology Reviews 2005; 18: 465–483.
2. Ericsson, CD. Travellers' diarrhea. International Journal of Antimicrobial Agents 2003; 21: 116–124.
3. Beatty, ME, et al. Enterotoxin-producing Escherichia coli O169:H41, United States. Emerging Infectious Diseases 2004; 10: 518–521.
4. Beatty, ME, et al. Epidemic diarrhea due to enterotoxigenic Escherichia coli. Clinical Infectious Diseases 2006; 42: 329–334.
5. Devasia, RA, et al. Endemically acquired foodborne outbreak of enterotoxin-producing Escherichia coli serotype O169:H41. American Journal of Medicine 2006; 119: 168.e7–168.e10.
6. Riordan, T, et al. An outbreak of food-borne enterotoxigenic Escherichia coli diarrhea in England. Journal of Infection 1985; 11: 167–171.
7. Taylor, WR, et al. A foodborne outbreak of enterotoxigenic Escherichia coli diarrhea. New England Journal of Medicine 1982; 306: 1093–1095.
8. Yoder, JS, et al. Outbreak of enterotoxigenic Escherichia coli infection with an unusually long duration of illness. Clinical Infectious Diseases 2006; 42: 1513–1517.
9. MacDonald, KL, et al. A multistate outbreak of gastrointestinal illness caused by enterotoxigenic Escherichia coli in imported semisoft cheese. Journal of Infectious Diseases 1985; 151: 716–720.
10. Naimi, TS, et al. Concurrent outbreaks of Shigella sonnei and enterotoxigenic Escherichia coli infections associated with parsley: implications for surveillance and control of foodborne illness. Journal of Food Protection 2003; 66: 535–541.
12. Stata version 8.0. Stata Corporation, College Station, TX, USA (http://www.stata.com). Accessed 20 February 2008.
13. Blom, M, et al. Evaluation of Statens Serum Institut enteric medium for detection of enteric pathogens. Journal of Clinical Microbiology 1999; 37: 2312–2316.
14. Persson, S, et al. A method for fast and simple detection of major diarrheagenic Escherichia coli in the routine diagnostic laboratory. Clinical Microbiology and Infection 2007; 13: 516–524.
15. Swaminathan, B, et al. PulseNet: the molecular subtyping network for foodborne bacterial disease surveillance, United States. Emerging Infectious Diseases 2001; 7: 382–389.
16. Nordic Committee on Food Analysis (NMKL). Thermotolerant coliform bacteria and Escherichia coli. Enumeration in food and feed, 4th edn, 2005, No. 125.
17. Katzenelson, E, Buium, I, Shuval, HI. Risk of communicable disease infection associated with wastewater irrigation in agricultural settlements. Science 1976; 194: 944–946.
18. Fattal, B, et al. Health risks associated with wastewater irrigation: an epidemiological study. American Journal of Public Health 1986; 76: 977–979.
19. Shuval, HI, et al. Transmission of enteric disease associated with wastewater irrigation: a prospective epidemiological study. American Journal of Public Health 1989; 79: 850–852.
20. Trang, DT, et al. Incidence of and risk factors for skin ailments among farmers working with wastewater-fed agriculture in Hanoi, Vietnam. Transactions of the Royal Society of Tropical Medicine and Hygiene 2007; 101: 502–510.
22. Heymann, LD (ed.). Control of Communicable Diseases Manual, 18th edn. Washington: American Public Health Association, 2004, pp. 164–166.
23. Dalton, CB, et al. Outbreaks of enterotoxigenic Escherichia coli infection in American adults: a clinical and epidemiologic profile. Epidemiology and Infection 1999; 123: 9–16.
24. Kuusi, M, et al. Internet use and epidemiologic investigation of gastroenteritis outbreak. Emerging Infectious Diseases 2004; 10: 447–450.
25. Srikantiah, P, et al. Web-based investigation of multistate salmonellosis outbreak. Emerging Infectious Diseases 2005; 11: 610–612.