Macrolide-resistant Campylobacter: The meat of the matter

Journal of Antimicrobial Chemotherapy

Volumn 60, Issue 4, 2007, Pages 715-723

  Belanger, Aimee E ^a   Shryock, Thomas R ^a  

^a ELANCO ANIMAL HEALTH   (United States)

Author keywords

Beef; Chicken; Erythromycin; Pork; Tylosin

Indexed keywords

ANTIINFECTIVE AGENT; AZITHROMYCIN; CLARITHROMYCIN; ERYTHROMYCIN; LINCOSAMIDE; MACROLIDE; QUINOLINE DERIVED ANTIINFECTIVE AGENT; TILMICOSIN; TULATHROMYCIN; TYLOSIN; UNCLASSIFIED DRUG;

ANTIBIOTIC RESISTANCE; BACTERIAL FLORA; BACTERIAL INFECTION; BACTERIAL STRAIN; BASIC RESEARCH; CAMPYLOBACTER; DATA ANALYSIS; DECISION MAKING; DRUG RESPONSE; DRUG USE; FARM ANIMAL; FOOD INTAKE; HEALTH HAZARD; HUMAN; INTESTINE FLORA; MEAT; NONHUMAN; REVIEW; ZOONOSIS;

ANIMALS; ANIMALS, DOMESTIC; ANTI-BACTERIAL AGENTS; CAMPYLOBACTER; CAMPYLOBACTER INFECTIONS; DENMARK; DRUG RESISTANCE, BACTERIAL; HUMANS; MACROLIDES; MEAT; UNITED STATES; ZOONOSES;

EID: 34548739547     PISSN: 03057453     EISSN: 14602091     Source Type: Journal    
DOI: 10.1093/jac/dkm300     Document Type: Review

References (121)

1. Friedman C, Neimann J, Wegner J et al. Epidemiology of Campylobacter jejuni infections in the United States and other industrialized nations. In: Nachamkin I, Blaser M, eds. Campylobacter 2nd edn. Washington, DC: ASM Press, 2000; 121-38.
2. Anonymous. Annual Report on Zoonoses in Denmark 2004. http://www.dfvf.dk/Default.aspx?ID=9606 (27 June 2007, date last accessed).
3. The OzFoodNet Working Group. Reported foodborne illness and gastroenteritis in Australia: Annual report of the OzFoodNet network. Commun Dis Intell 2004; 29: 164-90.
4. Skirrow M, Blaser M. Clinical aspects of Campylobacter infection. In: Nachamkin I, Blaser M, eds. Campylobacter. 2nd edn. Washington, DC: ASM Press, 2000; 69-88.
5. Helms M, Simonsen J, Olsen K et al. Adverse health events associated with antimicrobial drug resistance in Campylobacter species: A registry-based cohort study. J Infect Dis 2005; 191 1050-5.
6. Gilbert D, Moellering R Jr, Eliopoulos G et al. The Sandford Guide to Antimicrobial Therapy. 35th edn. Hyde Park, VT: Antimicrobial Therapy Inc., 2005.
7. Skirrow M. Campylobacter enteritis: A "new" disease. Br Med J 1977; 2: 9-11.
8. Champion O, Gaunt M, Gundogdu O et al. Comparative phylogenomics of the foodborne pathogen Campylobacter jejuni reveals genetic markers predictive of infection source. Proc Natl Acad Sci 2005; 102: 16043-8.
9. Maugeri, T, Carbone M, Fera M et al. Distribution of potentially pathogenic bacteria as free living plankton associated in a marine coast. J Appl Microbiol 2004; 97: 354-61
10. Ashkenazi S, Danziger Y, Versano Y et al. Treatment of Campylobacter gastroenteritis. Arch Dis Child 1987; 62: 84-5.
11. Butzler J, Goosens H. Campylobacter jejuni infection as a hospital problem: An overview. J Hosp Infect 1988; 11 Suppl A: 374-7.
12. Gaudreau C, Michaud S. Cluster of erythromycin- and ciprofloxacin-resistant Campylobacter jejuni subsp. jejuni from 1999 to 2001 in men who have sex with other men, Quebec, Canada. Clin Infect Dis 2003; 37: 131-6.
13. Goosens H, Henocque G, Kremp L et al. Nosocomial outbreak of Campylobacter jejuni meningitis in newborn infants. Lancet 1986; ii: 146-9.
14. Llovo J, Mateo E, Munoz A et al. Molecular typing of Campylobacter jejuni isolates involved in a neonatal outbreak indicates nosocomial transmission. J Clin Microbiol 2003; 41 3926-8.
15. Schönberg-Norio D, Takkinen J, Hanninen M-L et al. Swimming and Campylobacter infections. Emerg Infect Dis 2004; 10: 754-60.
16. Vandamme P. Taxonomy of the family Campylobacteraceae. In: Nachamkin I, Blaser M, eds. Campylobacter. 2nd edn. Washington, DC: ASM Press, 2000; 3-26.
17. Nielsen E, Engberg J, Madsen M. Distribution of serotypes of Campylobacter jejuni and Campylobacter coli from Danish patients, poultry, cattle and swine. FEMS Immunol Med Microbiol 1997; 19: 47-56.
18. Walsh C. Antibiotics that block protein synthesis. Antibiotic Actions, Origins, Resistance. Washington, DC: ASM Press, 2003; 51-69.
19. Tenson T, Lovmar M, Ehrenberg M. The mechanism of action of macrolides, lincosamides and streptogramin B reveals the nascent peptide exit path in the ribosome. J Mol Biol 2003; 330: 1005-14.
20. Nakajima Y. Mechanisms of bacterial resistance to macrolide antibiotics. J Infect Chemother 1999; 5: 61-74.
21. Payot S, Bolla J-M, Corcoran D et al. Mechanisms of fluoroquinolone and macrolide resistance in Campylobacter spp. Microb Infect 2006, 8: 1967-71.
22. Gibreel A, Kos V, Keelan M et al. Macrolide resistance in Campylobacter jejuni and Campylobacter coli: Molecular mechanism and stability of the resistance phenotype. Antimicrob Agents Chemother 2005; 49: 2753-9.
23. Vacher S, Menard A, Bernard E et al. Detection of mutations associated with macrolide resistance in thermophilic Campylobacter spp. by real-time PCR. Microb Drug Res 2005; 11: 40-7.
24. Corcoran D, Quinn T, Cotter L et al. An investigation of the molecular mechanisms contributing to high-level resistance in Campylobacter. Int J Antimicrob Agents 2006; 27: 40-5.
25. Tait-Kamradt A, Davies T, Appelbaum P et al. Two new mechanisms of macrolide resistance in clinical strains of Streptococcus pneumoniae from Eastern Europe and North America. Antimicrob Agents Chemother 2000; 44: 3395-401.
26. Vacher S, Ménard A, Bernard E et al. PCR-restriction fragment length polymorphism analysis for detection of point mutations associated with macrolide resistance in Campylobacter spp. Antimicrob Agents Chemother 2003; 47: 1125-8.
27. Lin J, Yan M, Sahin O et al. Effect of macrolide usage on emergence of erythromycin-resistant Campylobacter isolates in chickens. Antimicrob Agents Chemother 2007; 51: 1678-86.
28. Clinical and Laboratory Standards Institute. Methods for Antimicrobial Dilution and Disk Susceptibility Testing of Infrequently Isolated or Fastidious Bacteria: Approved Guideline M45-A. CLSI, Wayne, PA, USA, 2006.
29. Burridge R, Warren C, Phillips I. Macrolide, lincosamide and streptogramin resistance in Campylobacter jejuni coli. J Antimicrob Chemother 1986; 17: 315-21.
30. Taylor D, Echeverria P, Pitarangsi C et al. Influence of strain characteristics and immunity on the epidemiology of Campylobacter infections in Thailand. J Clin Microbiol 1988; 26: 863-8.
31. Luangtongkum T, Morishita T, Ison A et al. Effect of conventional and organic production practices on the prevalence and antimicrobial resistance of Campylobacter spp. in poultry. Appl Environ Microbiol 2006; 72: 3600-7.
32. Thakur S, Gebreyes W. Prevalence and antimicrobial resistance of Campylobacter in antimicrobial-free and conventional pig production systems. J Food Prot 2005; 68: 2402-10.
33. Inglis G, McAllister T, Busz H et al. Effects of subtherapeutic administration of antimicrobial agents on beef cattle on the prevalence of antimicrobial resistance in Campylobacter jejuni and Campylobacter hyointestinalis. Appl Environ Microbiol 2005; 71: 3872-81.
34. Ladely S, Harrison M, Fedorka-Cray P et al. Development of macrolide resistant Campylobacter in broilers administered subtherapeutic levels of tylosin. International Poultry Scientific Forum, Atlanta, GA, 2007. Abstract M57.
35. Berrang M, Ladely S, Meinersmann R et al. subtherapeutic tylosin phosphate in broiler feed affects Campylobacter on carcasses during processing. Poult Sci 2007; 86: 1229-33.
36. DANMAP 2005. Use of Antimicrobial Agents and Occurrence of Antimicrobial Eesistance in Bacteria From Food Animals, Foods and Humans in Denmark. http://www.danmap.org/ (27 June 2007, date last accessed).
37. Bemdtson E, Tivemo M, Engvall A, Distribution and numbers of Campylobacter in newly slaughtered broiler chickens and hens. Int J Food Microbiol 1992; 15: 45-50.
38. Jacobs-Reitsma W. Campylobacter in the food supply. In: Nachamkin I, Blaser M, eds. Campylobacter. 2nd edn. Washington, DC: ASM Press, 2000; 467-81.
39. Oosterom J, Dekker R, de Wilde G et al. Prevalence of Campylobacter jejuni and Salmonella during pig slaughtering. Vet Q 1985; 7: 31-4.
40. Stanley K, Wallace J, Currie J et al. The seasonal variation of thermophilic campylobacters in beef cattle, dairy cattle and calves. J Appl Microbiol 1998; 85: 472-80.
41. Pearce R, Wallace F, Call J et al. Prevalence of Campylobacter within a swine slaughter and processing facility. J Food Prot 2003; 66: 1550-6.
42. Australian Government. Pilot Surveillance Program for Antimicrobial Resistance in Bacteria of Animal Origin. http://www.health.gov.au/ internet/wcms/publishing.nsf/content/ health-pubhlth-strateg-jetacar-pdf-amrstrategy_affa.htm (27 June 2007, date last accessed).
43. Government of Canada. Canadian Integrated Program for Antimicrobial Resistance Surveillance (CIPARS) 2004. http://www.phac-aspc.gc.ca/ cipars-picra/2004_e.html (27 June 2007, date last accessed).
44. Christenson B, Ringer Å, Blucher C. An outbreak of Campylobacter enteritis among the staff of a poultry abbatoir in Sweden. Scand J Infect Dis 1983; 15: 167-72.
45. Blaser M, Sazle E, Williams JP. The influence of immunity on raw milk-associated Campylobacter infection. J Am Med Assoc 1987; 257: 43-6.
46. Oberhelman R, Taylor D. Campylobacter infections in developing countries. In: Nachamkin I, Blaser M, eds. Campylobacter. 2nd edn. Washington, DC: ASM Press, 2000; 139-53.
47. Black R, Levine M, Clements M et al. Experimental Campylobacter jejuni infections in humans. J Infect Dis 1988; 157: 472-9.
48. Yang C, Jiang Y, Huang K et al. Application of real-time PCR for quantitative detection of Campylobacter jejuni in poultry, milk and environmental water. FEMS Immunol Med Microbiol 2003; 38 265-71.
49. Luber P, Brynestad S, Topsch et al. Quantification of Campylobacter species cross-contamination during handling of contaminated fresh chicken parts in chicken in kitchens. Appl Environ Microbiol 2006; 72: 66-70.
50. National Antimicrobial Resistance Monitoring System. NARMS Retail Meat Annual Report, 2002. http://www.fda.gov/cvm/narms_pg.html (27 June 2007, date last accessed).
51. National Antimicrobial Resistance Monitoring System. NARMS Retail Meat Annual Report, 2004. http://www.fda.gov/cvm/narms_pg.html (27 June 2007, date last accessed).
52. National Antimicrobial Resistance Monitoring System. NARMS Retail Meat Annual Report, 2003. http://www.fda.gov/cvm/narms_pg.html (27 June 2007, date last accessed).
53. Anonymous. Annual Report on Zoonoses in Denmark 2002. http://www.dfvf.dk/Default.aspx?ID=9606 (27 June 2007, date last accessed).
54. ESR for the Ministry of Health. New Zealand Public Health Surveillance Report, September, 2006. http://www.surv.esr.cri.nz/ PDF_surveillance/NZPHSR/2006/NZPHSRSept2006.pdf (27 June 2007, date last accessed).
55. Anonymous. Annual Report on Zoonoses in Denmark 2005. http://www.dfvf.dk/Default.aspx?ID=9606 (27 June 2007, date last accessed).
56. Centers for Disease Control and Prevention (CDC). 2005 FoodNet Annual Report. http://www.cdc.gov/foodnet/index.htm (27 June 2007, date last accessed).
57. Centers for Disease Control and Prevention (CDC). 2004 FoodNet Annual Report. http://www.cdc.gov/foodnet/index.htm (27 June 2007, date last accessed).
58. Banmali P, Fritschi L, Atrie J. Epidemiology of notified campylo-bacteriosis in Western Australia. Nepal Med Coll J 2006; 8: 31-5.
59. Unicomb, L, Ferguson J, Stafford J et al. Low-level fluoroquinolone resistance among Campylobacter jejuni isolates in Australia. Clin Infect Dis 2006; 42: 1368-74.
60. Wang W-L, Reller L, Blaser M. Comparison of antimicrobial susceptibility patterns of Campylobacter jejuni and Campylobacter coli. Antimicrob Agents Chemother 1984; 26: 351-3.
61. Huang M, Baker C, Banerjee S et al. Accuracy of the E test for determining antimicrobial susceptibilities of staphylococci, enterococci, Campylobacter jejuni, and Gram-negative bacteria resistant to antimicrobial agents. J Clin Microbiol 1992; 30 3243-8.
62. Liebers D, Baltch A, Smith R et al. Corporative in-vitro activities of A-56268 (Te-031) and erythromycin against 306 clinical isolates. J Antimicrob Chemother 1988; 21: 565-70.
63. Moore J, Barton M, Blair I et al. The epidemiology of antibiotic resistance in Campylobacter. Microbes Infect 2006; 8: 1955-66.
64. Vellinga A, Van Loock F. The dioxin crisis as experiment to determine poultry-related Campylobacter enteritis. Emerg Infect Dis 2002; 8: 19-22.
65. Siemer B, Harrington C, Nielson E et al. Genetic relatedness among Campylobacter jejuni serotyped isolates of diverse origin as determined by numerical analysis of amplified fragment length polymorphism (AFLP) profiles. J Appl Microbiol 2004; 96: 795-802.
66. Siemer B, Nielsen E, On S. Identification and molecular epidemiology of Campylobacter coli isolates from human gastroenteritis, food and animal sources by amplified fragment length polymorphism analysis and Penner serotyping. Appl Environ Microbiol 2005; 71: 1953-8.
67. Litrup E, Torpdahl M, Nielsen E. Multilocus sequence typing performed on Campylobacter coli isolates from humans, broilers, pigs and cattle originating in Denmark. J Appl Microbiol 2007; 103: 210-8.
68. Centers for Disease Control and Prevention (CDC). Outbreak of Campylobacter jejuni infections associated with drinking unpasteurized milk procured through a cow-leasing program - Wisconsin, 2001. Morb Mortal Wkly Rep 2002; 51: 548-9.
69. Graham C, Whyte R, Gilpin B et al. Outbreak of campylobacteriosis following pre-cooked sausage consumption. Austral N Z J Pub Health 2005; 29: 507-10.
70. Engberg J, Gemer-Smidt P, Schuetz F et al. Quinolone-resistant Campylobacter infections in Denmark: Risk factors and clinical consequences. Emerg Infect Dis 2004; 10: 1056-63.
71. Sanders J, Isenbarger D, Walz S et al. An observational clinic-based study of diarrheal illness in deployed United States military personnel in Thailand: Presentation and outcome of Campylobacter infection. Am J Trop Med Hyg 2002; 67: 533-8.
72. Smith K, Besser J, Hedberg C et al. Quinolone-resistant Campylobacter jejuni infections in Minnesota, 1992-1998. N Engl J Med 1999; 340: 1525-32.
73. DuPont H, The Practice Parameters Committee of the American College of Gastroenterology. Guidelines on acute infectious diarrhea in adults. Am J Gastroenterol 1997; 92: 1962-75.
74. Guerrant R, Van Giler T, Steiner T et al. IDSA Guidelines. Practice guidelines for the management of infectious diarrhea. Clin Infect Dis 2001; 32: 331-51.
75. Salazar-Lindo E, Sack R, Chea-Woo E et al. Early treatment with erythromycin of Campylobacter jejuni-associated dysentery in children. J Pediatr 1986; 109: 355-60
76. Anders B, Lauer B, Paisley J et al. Double-blind placebo controlled trial of erythromycin treatment of cammpylobacter enteritis. Lancet 1982; II: 131-2.
77. Pal C, Gillis F, Tuomanen E et al. Erythromycin treatment of Campylobacter enteritis in children. Am J Dis Chil 1983; 137 286-8.
78. Williams D, Schorling J, Barrett L et al. Early treatment of Campylobacter jejuni enteritis. Antimicrob Agents Chemother 1989; 33: 248-50.
79. Temhag A, Tomor A, Svensson A et al. Mortality following Campylobacter infection: A registry-based linkage study. BMC Infect Dis 2005; 5: 70-5.
80. Skirrow M, Jones D, Sutcliffe E et al. Campylobacter bacteraemia in England and Wales, 1981-1991. Epidemiol Infect 1993; 110: 567-73.
81. Schønheyder H, Søgaard P, Frederikson W. A survey of Campylobacter bacteraemia in three Danish counties, 1989 to 1994. Scand J Infect Dis 1995; 27: 145-8.
82. Tee W, Mijch A. Campylobater jejuni bacteremia in human immunodeficiency virus (HIV)-infected and non-HIV-infected patients: comparison of clinical features and review. Clin Infect Dis 1998; 21: 91-6.
83. Pigrau C, Bartolome R, Almirante B et al. Bacteraemia due to Campylobacter species: Clinical findings and antimicrobial susceptibility patterns. Clin Infect Dis 1997; 25: 1414-20.
84. World Health Organization. Critically Important Antibacterial Agents for Human Medicine for Risk Management Strategies of Non-Human Use: Report of a WHO Working Group Consultation, Canberra, Australia, February 15-18, 2005. http://www.who.int/foodborne_disease/ resistance/en/ (27 June 2007, date last accessed).
85. Thielman N, Guerrant R. Acute Infectious diarrhea. N Eng J Med 2004; 350: 38-47.
86. White N, Dung N, Vihn H et al. Fluoroquinolone antibiotics in children with multidrug resistant typhoid. Lancet 1996; 348: 547.
87. Hughes R, Comblath D. Guillain-Barré syndrome. Lancet 2005; 366: 1653-66.
88. Nachainkin I. Campylobacter jejuni infection and the association with Guillan-Barré syndrome. In: Nachamkin I, Blaser M, eds. Campylobacter. 2nd edn. Washington, DC: ASM Press, 2000; 155-75.
89. Locht H, Krogfelt K. Comparison of rheumatological and gastrointestinal symptoms after infection with Campylobacter jejuni/coli and enterotoxigenic Escherichia coli. Ann Rheum Dis 2002; 61: 448-52.
90. Neal K, Wright J. Reactive arthritis like symptoms following gastro-enteritis - an increased risk with severe Campylobacter infection. Int J Med Microbiol 2001; 291: 110.
91. Nelson J, Smith K, Vugia D et al. Prolonged diarrhea due to ciprofloxacin-resistant Campylobacter infection. J Infect Dis 2004; 190: 1150-7.
92. Neal K, Slack R. Diabetes mellitus, anti-secretory drugs and other risk factors for Campylobacter gastro-enteritis in adults: A case-control study. Epidemiol Infect 1997; 119: 307-11.
93. De Bruyn G. Infectious disease: Diarrhea. Clin Evid 1999; 2: 267-73.
94. Neal K, Scott H, Slack R et al. Omeprazole as a risk factor for Campylobacter enteritis: Case-control study. BMJ 1996; 312 414-5.
95. Smith G, Blaser M. Fatalities associated with Campylobacter jejuni infections. J Am Med Assoc 1985; 253: 2873-5.
96. Figura N, Guglielmetti P. Clinical characteristics of Campylobader jejuni and C. coli enteritis. Lancet1988; 1: 942-3.
97. Popovic-Uroic T, Gmajnicki B, Kalenic S et al. Clinical comparison of Campylóbacter jejuni and C. coli diarrhea. Lancet 1988; 1: 176-7.
98. Fouts D, Mongodin E, Mandrell R et al. Major structural differences and novel potential virulence mechanisms from the genomes of multiple Campylobacter species. PLoS Biol 2005; 3: 72-85.
99. EE Leonard I, Thompkins L, Falkow S et al. Comparison of Campylobacter jejuni isolates implicated in Guillain-Barré syndrome and those that cause enteritis by DNA microarray. Infect Immun 2004; 72:1199-203.
100. Organisation Internationals Epizooties. Guidelines for the Responsible and Prudent Use of Antimicrobial Agents in Veterinary Medicine, OlE Terrestrial Animal Health Code 2006, Part 3, Section 3.9, Chapter 3.9.3. http://www.oie.int/eng/normes/mcode/en_chapitre_3.9.3.htm) (27 June 2007, date last accessed).
101. World Health Organization, Food and Agriculture Organization of the United Nations, and World Organization for Animal Health. Background Document for the Joint WHO/FAO/OIE Expert Workshop on Non-Human Antimicrobial Usage and Antimicrobial Resistance: Scientific Assessment, Geneva, Switzerland, December 1-5, 2003. http://www.who.int/salmsurv/ links/RelWHO/en/ (27 June 2007, date last accessed).
102. DANMAP 1997. Consumption of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Bacteria From Food Animals, Food and Humans in Denmark. http://www.danmap.org/ (27 June 2007, date last accessed).
103. DANMAP 1998. Consumption of Antimbobial Agents and Occurrence of Antimicrobial Resistance in Bacteria From Food Animals, Food and Humans in Denmark. http://www.danmap.org/ (27 June 2007, date last accessed).
104. DANMAP 1999. Consumption of Antimicrobial Agents and Occurrence of Antimicrobial Flesistance in Bacteria From Food Animals, Food and Humans in Denmark. http://www.danmap.org/ (27 June 2007, date last accessed).
105. DANMAP 2000. Consumption of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Bacteria From Food Animals, Foods and Humans in Denmark. http://www.danmap.org/ (27 June 2007, date last accessed).
106. DANMAP 2001. Use of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Bacteria From Food Animals, Foods and Humans in Denmark. http://www.danmap.org/ (27 June 2007, date last accessed).
107. DANMAP 2002. Use of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Bacteria From Food Animals, Foods and Humans in Denmark. http://www.danmap.org/ (27 June 2007, date last accessed).
108. DANMAP 2003. Use of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Bacteria From Food Animals, Foods and Humans in Denmark. http://www.danmap.org/ (27 June 2007, date last accessed).
109. DANMAP 2004. Use of Antimicrobial Agents and Occurrance of Antimicrobial Resistance in Bacteria From Food Animals, Foods and Humans in Denmark. http://www.danmap.org/ (27 June 2007, date last accessed).
110. Englen M, Fedorka-Cray P, Ladely S et al. Antimicrobial resistance patterns of Campylobacter from feedlot cattle. J Appl it Microbiol 2005; 99: 285-91.
111. United States Department of Agriculture - National Antimicrobial Resistance Monitoring System (USDA-NARMS). Campylobacter 2003 Report http://www.ars.usda.gov/Main/docs.htm?docid=6750 (27 June 2007, date last accessed).
112. Gupta A, Nelson J, Barrett T et al. Antimicrobial resistance among Campylobacter strains, United States, 1997-2001. Emerg Infect Dis 2004; 10: 1102-9.
113. Centers for Disease Control and Prevention (CDC) - National-Antimicrobial Resistance Monitoring System: Enteric Bacteria (CDC-NARMS). 2003 Human Isolates, Final Report http://www.cdc.gov/ narms/annual/2003/NARMS2003AnnualReport.pdf (27 June 2007, date last accessed).
114. United States Department of Agriculture - Collaboration in Animal Health and Food Safety Epidemiology (USDA-CAHFSE). CAHFSE Annual Report, July 2003-June 2004. http://www.aphis.usda.gov/cahfse/results/ index.htm (27 June 2007, date last accessed).
115. United States Department of Agriculture - Collaboration in Animal Health and Food Safety Epidemiology (USDA-CAHFSE). CAHFSE Annual Report, July 2004-July 2005. http://www.aphis.usda.gov/cahfse/results/ index.htm (27 June 2007, date last accessed).
116. Anonymous. Annual Report on Zoonoses in Denmark 1997. http://www.dfvf.dk/Default.aspx?ID=9606 (27 June 2007, date last accessed).
117. Anonymous. Annual Report on Zoonoses in Denmark 2003. http://www.dfvf.dk/Default.aspx?ID=9606 (27 June 2007, date last accessed).
118. Nielsen E, Fussing V, Engberg J et al. Most Campylobacter subtypes from sporadic infections can be found in retail poultry products and food animals. Epidemiol Infect 2005; 134: 759-67.
119. Gupta A, Nelson JM, Barrett TJ et al. Antimicrobial resistance among Campylobacter strains, United States, 1997-2001. Emerg Infect Dis 2004; 10: 1102-9.
120. Zhao C, Ge B, De Villena J et al. Prevalence of Campylobacter spp., Escherichia coli, and Salmonella serovars in retail chicken, turkey, pork, and beef from the Greater Washington, D.C., area. Appl Environ Microbiol 2001; 67: 5431-6.
121. Duffy EA, Belk KE, Solos JN et al, Extent of microbial contamination in United States pork retail products. J Food Prot 2001; 64: 172-8.