Towards a US national estimate of the risk of endemic waterborne disease - Sero-epidemiologic studies

Journal of Water and Health

Volumn 4, Issue SUPPL. 2, 2006, Pages 121-164

  Casemore, David ^a,b  

^a ABERYSTWYTH UNIVERSITY   (United Kingdom)

^b NONE   (United Kingdom)

Author keywords

Campylobacter; Cryptosporidium; E. coli 0157; ELISA; Endemic infection; Giardia; Molecular studies; Noroviruses; Outbreaks; Sero epidemiology; Seroprevalence; Waterborne pathogens; Western blot

Indexed keywords

ANTIBODY; ANTIGEN; GROUND WATER;

DISEASE PREVALENCE; EPIDEMIOLOGY; PATHOGEN; RISK ASSESSMENT; WATER SUPPLY; WATERBORNE DISEASE;

ANTIBODY RESPONSE; BACTERIAL INFECTION; CALICIVIRUS; CRYPTOSPORIDIOSIS; CRYPTOSPORIDIUM; DISEASE TRANSMISSION; ENDEMIC DISEASE; ENTAMOEBA HISTOLYTICA; EPIDEMIC; EPIDEMIOLOGICAL DATA; GEOGRAPHIC DISTRIBUTION; GIARDIA; GIARDIASIS; HUMAN; HYGIENE; IMMUNITY; MICROORGANISM; NONHUMAN; PATHOGENESIS; REVIEW; RISK ASSESSMENT; SEROPREVALENCE; SOCIAL ASPECT; UNITED STATES; WATER BORNE DISEASE; WATER CONTAMINATION; WATER SUPPLY;

ENDEMIC DISEASES; GASTROINTESTINAL DISEASES; HUMANS; RISK FACTORS; SEROEPIDEMIOLOGIC STUDIES; UNITED STATES;

NORTH AMERICA; UNITED STATES;

EID: 33746665226     PISSN: 14778920     EISSN: None     Source Type: Journal    
DOI: 10.2166/wh.2006.021     Document Type: Review

References (248)

1. Adak, G., Cowden, J., Nichols, G. & Evans, H. 1995 The Public Health Laboratory Service national case-control study of primary indigenous sporadic cases of campylobacter infection. Epidemiol. Infect. 115(1), 15-22.
2. Adam, R. & Nash, T. 2004 Antigenic variation of the VSP genes of Giardia lamblia. In The Pathogenic Enteric Protozoa: Giardia, Entamoeba, Cryptosporidium and Cyclospora (ed. C. Sterling & R. Adam), pp. 59-73. Kluwer Academic, Boston.
3. Aggarwal, R. & Krawczynski, K. 2000 Hepatitis E: an overview and recent advances in clinical and laboratory research. J. Gastroenterol. Hepatol. 15, 9-20.
4. Al-Tukhi, M., Al-Ahdal, M., Ackers, J. & Peters, W. 1993 Enzyme-linked immunosorbent assay for the detection of anti Giardia specific salivary immunoglobulin A. Med. Sci. Res. 21, 579-580.
5. Anon 2000 Waterborne outbreak of gastroenteritis associated with a contaminated water supply. Can. Commun. Dis. Rep. 26, 170-173.
6. Appleton, H. 2000 Norwalk Virus and the small round viruses causing foodborne gastroenteritis. In Foodborne Disease Handbook (ed. K. Murrell, P. Stanfield, N. Wai-Kit, Y. Hui & S. Sattar), pp. 77-97. Marcel Dekker, New York.
7. Atmar, R. & Estes, M. 2001 Diagnosis of noncultivable gastroenteritis viruses, and human Calicivirus. Clin. Microbiol. Rev. 14(1), 15-37.
8. Bahia-Olivera, L., Jones, J., Azavedo-Silva, J., Alves, C., Oréfice, F. & Addiss, D. 2003 Highly endemic, waterborne toxoplasmosis in North Rio de Janeiro State, Brazil. Emerging Infect. Dis. 9(1), 55-62.
9. Belongia, E., Chyou, P., Greenelee, R., Perez-Perez, G., Bibb, W. & DeVries, E. 2003 Diarrhea incidence and farm-related risk factors for Escherichia coli 0157:H7 and Campylobacter jejuni antibodies among rural children. J. Infect. Dis. 187, 1460-1468.
10. Beneson, M., Takafuji, E., Lemon, S., Greenup, R. & Sulzer, A. 1982 Oocyst-transmitted toxoplasmosis associated with ingestion of contaminated water. New Engl. J. Med. 307, 666-669.
11. Bern, C., Ortega, Y., Checkley, W., Roberts, J., Lescano, A., Cabera, L., Verastegui, M., Black, R., Sterling, C. & Gilman, R. 2002 Epidemiologic differences between cyclosporiasis and cryptosporidiosis in Peruvian children. Emerging Infect. Dis. 8(6), 581-585.
12. Birkhead, G., Janoff, E., Voget, R. & Smith, P. 1989 Elevated levels of immunoglobulin A to Giardia lamblia during a waterborne outbreak of gastroenteritis. J. Clin. Microbiol. 27(8). 1707-1710.
13. Bowie, W., King, A., Werker, D., Isaac-Renton, J., Bell, A., Eng, S. & Marion, S. 1997 Outbreak of toxoplasmosis associated with municipal drinking water. The Lancet 350, 173-177.
14. Braz, L., Neto, V., Ferrari, C., Palhares, M., Amato, V., Santos, M., Marques, H., Vallada, M., Nakanishi, L. & Andrade, H. 1996 Human cryptosporidiosis: detection of specific antibodies in the serum by an indirect immunofluorescence. Rev. Saúde. Pública. 30(5), 395-402.
15. Campbell, P. & Current, W. 1983 Demonstration of serum antibodies to Cryptosporidium sp in normal and immunodeficient humans with confirmed infections. J. Clin. Microbiol. 18 (1), 165-169.
16. Caputo, C., Forbes, A. & Frost, F. 1999 Determinants of antibodies to Cryptosporidium infection among gay and bisexual men with HIV infection. Epidemiol. Infect 122, 291-297.
17. Casemore, D. 1987 The antibody response to cryptosporidium: development of a serological test and its use in a study of immunologically normal persons. J. Infect. 14, 125-134.
18. Casemore, D. 1989 Human cryptosporidiosis. In Recent Advances in Infection, No. 3. (ed. D. Reeves & A. Geddes), pp. 209-236. Churchill Livingstone, Edinburgh.
19. Casemore, D. 1990 Epidemiological aspects of human cryptosporidiosis. Epidemiol. Infect, 104, 1-28.
20. Casemore, D. 1994 Enteric protozoa and the water route of transmission - epidemiology and dynamics. In Water and Public Health (ed. A. Golding, N. Noah & R. Stanwell-Smith), pp. 123-136. Smith-Gordon, Nishimura, London.
21. Casemore, D. 1995 The problem with protozoan parasites. In Protozoan Parasites and Water (ed. W. Betts, D. Casemore, C. Fricker, H. Smith & J. Watkins), pp. 10-18. Royal Society of Chemistry, Cambridge.
22. Casemore, D. & Jackson, F. 1984 Hypothesis: cryptosporidiosis in humans is not primarily a zoonosis. J. Infect 9, 153-156.
23. Casemore, D., Jessop, E., Douce, D. & Jackson, F. 1986 Cryptosporidium plus campylobacter: an outbreak in a semi-rural population. J. Hygiene Camb. 96, 95-105.
24. Casemore, D., Wright, S. & Coop, R. 1997 Cryptosporidiosis - human and animal epidemiology. In Cryptosporidium and Cryptosporidiosis (ed. R. Fayer), pp. 65-92. CRC Press, Boca Raton, FL.
25. Chalmers, R. & Casemore, D. 2004 Epidemiology and strain variation if Cryptosporidium. In The Pathogenic Enteric Protozoa: Giardia, Entamoeba, Cryptosporidium and Cyclospora (ed. C. Sterling & R. Adam), pp. 27-42. Kluwer Academic, Boston.
26. Chalmers, R., Elwin, K., Reilly, W., Irvine, H., Thomas, A. & Hunter, P. 2002a Cryptosporidium in farmed animals: the detection of a novel isolate in sheep. Int. J. Parasitol. 32, 21-26.
27. Chalmers, R., Elwin, K., Thomas, A. & Joynson, H. 2002b Infection with unusual types of Cryptosporidium is not restricted to immunocompromised patients. J. Infect. Dis. 185, 270-271.
28. Chappell, C., Okhuysen, P. & Dann, S. 2001 Serological response to Cryptosporidium infection. Infect. Immun. 69(3), 1974-1975.
29. Chappell, C., Okhuysen, P., Sterling, C. & DuPont, H. 1996 Cryptosporidium parvum: intensity of infection and oocyst excretion patterns in healthy volunteers. J. Infect Dis. 173, 232-236.
30. Chappell, C., Okhuysen, P., Sterling, C., Wang, C., Jakubowski, W. J. & Dupont, H. L. 1999 Infectivity of Cryptosporidium parvum in healthy adults with pre-existing anti-C. parvum serum ummunoglobulin G. Am. J. Trop. Med. Hygiene 60(1), 157-164.
31. Char, S., Cevallos, A., Yamson, P., Sullivan, P. & Farthing, M. 1993 Impaired IgA response to Giardia heat shock antigen in children with persistent diarrhoea and giardiasis. Gut 34, 38-40.
32. Char, S., Shetty, N., Narishman, M., Elliott, E., Macaden, R. & Farthing, M. 1991 Serum antibody response in children with Giardia lamblia infection and identification of an immunodominant 57-kilodalton antigen. Parasit. Immunol. 13, 329-337.
33. Chart, H., Evans, J., Chalmers, R. & Salmon, R. 1998 Escherichia coli 0157 serology: false-positive ELISA results caused by human antibodies to bovine serum albumin. Lett. Appl. Microbiol. 27, 76-78.
34. Clark, C. 2004 Entamoeba histolytica and Entamoeba dispar, the non-identical twins. In The Pathogenic Enteric Protozoa: Giardia, Entamoeba, Cryptosporidium and Cyclospora (ed. C. Sterling & R. Adam), pp. 15-26. Kluwer Academic, Boston.
35. Clemente-Cesares, P., Pina, S., Buti, M., Jardi, R., Martin, M., Bofil-Mas, S. & Girones, R. 2003 Hepatitis E virus epidemiology in industrialized countries. Emerging Infect. Dis. 9(4), 448-454.
36. Cordell, R. & Addiss, D. 1994 Cryptosporidiosis in child care settings: a review of the literature and recommendations for prevention and control. Pediatr. Infect. Dis. J. 13(4), 310-317.
37. Cozen, G., Biron, F., Jeannin, M., Cannella, D. & Revillard, J-P. 1994 Secretory IgA antibodies to Cryptosporidium parvum in AIDS patients with chronic cryptosporidiosis. J. Infect. Dis. 169, 696-699.
38. Cox, M., Azavedo, R., Nokes,, Beards, G., McCrae, M., Massad, E. & Medley, G. 1998a Seroepidemiology of group A rotavirus in suburban São Paulo. Brazil. Epidemiol. Infect. 120, 327-334.
39. Cox, M., James, V., Azavedo, R., Massad, E. & Medley, G. 1998b Infection with group C rotavirus in a suburban community in Brazil. Trop. Med. Int. Health 3(11), 891-895.
40. Cox, M., Elwin, K., Massad, E. & Azavedo, R. 2005 Age-specific seroprevalence to an immunodominant Cryptosporidium sporozoite antigen in a Brazilian population. Epidemiol. Infect 133, 951-956.
41. Cox, M. & Medley, G. 2003 Serological survey of anti-group A rotavirus IgM in UK adults. Epidemiol. Infect. 131, 719-726.
42. Craun, G. 1990 Waterborne giardiasis. In Giardiasis; Human Parasitic Diseases (ed. E. Meyer), pp. 267-293. Elsevier, Amsterdam.
43. Craun, G., Calderon, R. & Nwachuku, N. 2002 Causes of reported waterborne outbreaks in the United States, 1991-1998. In Drinking Water and Infectious Disease: Establishing the Links (ed. P. Hunter, M. Waite & E. Ronchi), pp. 105-117. CRC Press, Boca Raton, FL.
44. Craun, G., Frost, F., Calderon, R., Hilborne, H., Fox, K., Reasoner, D., Poole, C., Rexing, D., Hubbs, S. & Dufour, A. 2001 Improving waterborne disease outbreak investigations. Int. J. Environ. Health Res. 11, 229-243.
45. Current, W. 1989 Immunobiology of Cryptosporidium spp. Pathol. Immunopathol. 8, 141-160.
46. Current, W. & Bick, P. 1989 Immunobiology of Cryptosporidium spp. Pathol. Immunopathol. Res. 8, 141-160.
47. Dann, S., Okhuysen, P., Salameh, B., DuPont, H. & Chappell, C. 2000 Fecal antibodies to Cryptosporidium parvum in healthy volunteers. Infect. Immun. 68, 5068-5074.
48. Dowd, S., Gerba, C. & Pepper, I. 1998 Confirmation of the humanpathogenic Microsporidia Enterocytozoon bieneusi, Encephalitozoon intestinalis, and Vittaforma cornea in water. Appl. Environ. Microbiol. 64(9), 3332-3335.
49. Dubey, J. 2004 Toxoplasmosis - a waterborne zoonosis. Vet Parasitol. 126, 57-72.
50. Duncanson, M., Chang, W., Frost, F., Muller, T. B. & Weinstein, P. 2003 Ubiquitous risk factor exposure and high prevalence of antibodies to Cryptosporidium parvum in two New Zealand communities. Appl. Environ. Sci., Public Health 1(2), 111-117.
51. DuPont, H., Chappell, C. & Sterling, C. 1995 The infectivity of Cryptosporidium parvum in health volunteers. New Engl. J. Med. 332, 855-859.
52. Egorov, A., Frost, F., Muller, T., Naumova, E., Tereschenko, A. & Ford, T. 2003 Serological evidence of Cryptosporidium infections in a Russian city and evaluation of risk factors for infection. Ann. Epidemiol. 14, 129-136.
53. Eisenberg, J., Priest, J., Lammie, P. & Colford, J. 2001 The serological response to Cryptosporidium in HIV-infected persons: implications for epidemiologic research. Emerging Infect. Dis. 7(6), 1004-1009.
54. Evans, J., Chalmers, R., Chart, R., Salmon, R., Kench, S., Coleman, T., Meadows, D., Morgan-Capner, P., Softly, P., Sillis, M. & Thomas, D. 2000 Evidence of persisting serum antibodies to Escherichia coli 0157 lipopolysaccharide and Verocytotoxin in members of rural communities in England. Eur. J. Epidemiol. 16, 885-889.
55. Fankhauser, R., Noel, J., Monroe, S., Ando, T. & Glass, R. 1998 Molecular epidemiology of "Norwalk-like Viruses" in outbreaks of gastroenteritis in the United States. J. Infect. Dis. 178, 1571-1578.
56. Farthing, M. 1989 Host-parasite interactions in human giardiasis. Quart. J. Med., New Series 70(263), 191-204.
57. Farthing, M. 1990 Immunopathology of giardiasis. Springer Semin. Immunopathol. 12, 269-282.
58. Farthing, M. 1992 Giardia comes of age: progress in epidemiology, immunology and chemotherapy. J. Antimicro. Chemother. 30, 563-569.
59. Farthing, M. 2003 Immune response-mediated pathology in human parasitic infection. Parasit. Immunol. 25, 247-257.
60. Farthing, M., Goka, A., Butcher, P. & Aravind, A. 1987 Serodiagnosis of giardiasis. Serodiagn. Immun. 1, 133-238.
61. Faubert, G. 2000 Immune response to Giardia duodenalis. Clin. Microbiol. Rev. 13(1), 35-54.
62. Fine, P. 1993 Herd immunity: history, theory, practice. Epidemiol. Rev. 15(2), 265-302.
63. Franzen, C. & Müller, A. 1999 Molecular techniques for detection, species differentiation, and phylogenetic analysis of Microsporidia. Clin. Microbiol. Rev. 12(2), 243-285.
64. Friedman, N., Frost, F., Caputo, C., Horrocks, M. & Fairley, C. 2001 One year followup of antibodies to Cryptosporidium among individuals with HIV infection. Venerol. 14, 21-24.
65. Frost, F. 1998 Two-city Cryptosporidium study. Drink. Wat. Res. 8, 2-5.
66. Frost, F. & Craun, G. 1998 Serologic response to human Cryptosporidium infections. Infect. Immun. 66(8), 4008.
67. Frost, F. & Craun, G. 1998b The importance of acquired immunity in the epidemiology of cryptosporidiosis and giardiasis. In OECD Workshop Molecular Methods for Safe Drinking Water. Interlaken, pp. 1-12.
68. Frost, F., de la Cruz, A., Moss, D., Curry, M. & Calderon, R. 1998a Comparison of ELISA and western blot assays for detection of Cryptosporidium antibody. Epidemiol. Infect. 121, 205-211.
69. Frost, F., Calderon, R., Muller, T., Curry, M., Rodman, J., Moss, D. & de la Cruz, A. 1998b A two-year follow-up survey of antibody to Cryptosporidium in Jackson County. Oregon following an outbreak of waterborne disease. Epidemiol. Infect. 121, 213-217.
70. Frost, F., Fea, E., Gilli, G., Biorci, F., Muller, T., Craun, G. & Calderon, R. 2000a Serological evidence of Cryptosporidium infections in southern Europe. Eur. J. Epidemiol. 16, 385-390.
71. Frost, F., Muller, T., Calderon, R. & Craun, G. 2000b A scrological survey of college students for antibody to Cryptosporidium before and after the introduction of a new filtration plant. Epidemiol. Infect. 125, 87-92.
72. Frost, F., Muller, T., Craun, G., Fraser, D., Thompson, D., Notenboom, R. & Calderon, R. 2000c Serological analysis of a cryptosporidiosis epidemic. Int. J. Epidemiol. 29, 376-379.
73. Frost, F., Muller, T., Fairley, C., Hurley, J., Craun, G. & Calderon, R. 2000d Serological evaluation of Cryptosporidium oocyst findings in the water supply for Sydney, Australia. Int. J. Environ. Health Res. 10, 35-40.
74. Frost, F., Muller, T., Craun, G., Calderon, R. & Roeffer, P. 2001 Paired city Cryptosporidium serosurvey in the southwest USA. Epidemiol. Infect. 126, 301-307.
75. Frost, F., Muller, T., Craun, G., Lockwood, W. & Calderon, R. 2002a Serological evidence of endemic waterborne Cryptosporidium infections. Ann. Epidemiol. 12, 222-227.
76. Frost, F., Kunde, T. & Craun, G. 2002b Is contaminated groundwater an important cause of viral gastroenteritis in the United States? J. Environ. Health 65(3), 9-14.
77. Frost, F., Muller, T., Kunde, T., Craun, G. & Calderon, R. 2003a Seroepidemiology. Drinking Water and Infectious Disease (ed. in P. Hunter, M. Waite & E. Ronchi), pp. 165-173. CRC Press, Boca Raton, FL.
78. Frost, F., Muller, T., Kunde, T. & Craun, G. 2003b Quality assurance considerations in Cryptosporidium antibody tests. Clin. Diagn. Lab. Immunol. 10(1), 193.
79. Frost, F., Kunde, T., Muller, T., Craun, G., Katz, L., Hibbard, A. & Calderon, R. 2003c Serological responses to Cryptosporidium antigens among users of surface- vs. ground-water sources. Epidemiol. Infect. 131, 1131-1138.
80. Frost, F., Muller, T., Calderon, R. & Craun, G. 2004 Analysis of serological responses to Cryptosporidium antigen among NHANES III participants. Ann. Epidemiol. 14, 473-478.
81. Frost, F., Roberts, M., Kunde, T., Craun, G., Tollestrup, K., Harter, L. & Muller, T. 2003a How clean must our drinking water be: the importance of protective immunity. J. Infect. Dis. 191, 809-814.
82. Frost, F., Craun, G., Mihály, K., György, B., Calderon, R. & Muller, T. 2005b Serological responses to Cryptosporidium antigens among women using riverbank-filtered water, conventionally filtered surface water and groundwater in Hungary. J. Wat. Health 3, 77-82.
83. Gallimore, C., Richards, A. & Gray, J. 2003 Molecular diversity of noroviruses associated with outbreaks on cruise ships: comparison with strains circulating within the UK. Commun. Dis. Public Health 6(4), 285-293.
84. Gandhi, B., Buch, P., Sharma, M., Irshad, M. & Samantray, S. 1989 ELISA for anti-Giardia IgM. (letter) The Lancet 2, 685.
85. Garcia, L., Fritsche, T., Grady, K., Healy, G., McAuley, J., Rocha, A., Wilson, M. & Wong, J. 2004 Clinical Use and Interpretation of Serologic Tests for Toxoplasma gondii; Approved Guideline. NCCLS document M36-A, Pennsylvania. 24(6), 1-21.
86. García-Rodriguez, J., Sánchez, A., Canut, A. & García-Luis, E. 1989 The seroepidemiology of Cryptosporidium species in different groups in Spain. Serodiag. Immunother. Infect. Dis. 3, 367-373.
87. Gardner, T. & Hill, D. 2001 Treatment of giardiasis. Clin. Microbiol. Rev. 14(1), 114-128.
88. Gilman, R., Brown, K., Visvesvara, G., Mondal, G., Greenberg, B., Sack, B., Brandt, F. & Khan, M. 1985 Epidemiology and serology of Giardia lamblia in a developing country: Bangladesh. Trans. Roy, Soc. Trop. Med. Hygiene 79, 469-473.
89. Gilman, R., Marquis, G., Miranda, E., Vestegui, M. & Martinez, H. 1988 Rapid reinfection by Giardia lamblia after treatment in a hyperendemic third world community. The Lancet i, 343-345.
90. Glass, R., Noel, J., Ando, T., Fankhauser, R., Belliot, G., Mounts, A., Parashar, U., Bresee, J. & Monroe, S. 2000 The epidemiology of enteric Caliciviruses from humans: a reassessment using new diagnostics. J. Infect. Dis. 181(Suppl 2), S254-S261.
91. Goh, S., Reacher, M., Casemore, D., Verlander, N., Chalmers, R., Knowles, M., Williams, J., Osborn, K. & Richards, S. 2004 Sporadic cryptosporidiosis, North Cumbria, England, 1996-2000. Emerging Infect. Dis. 10(6), 1007-1015.
92. Goh, S., Reacher, M., Casemore, D., Verlander, N., Charlett, A., Chlamers, R., Knowles, M., Pennington, A., Williams, J., Osborn, K. & Richards, S. 2005 Sporadic cryptosporidiosis. Decline after membrane filtration of public water supplies, England, 1996-2002. J. Emerging Infect. Dis. 11, 251-259.
93. Goka, A., Rolston, D., Mathan, V. & Farthing, M. 1986 Diagnosis of giardiasis by specific IgM antibody enzyme-linked immunosorbent assay. The Lancet ii, 184-186.
94. Gomez-Morales, M., Pozio, E. & Croppo, G. 1992 Serodiagnosis of cryptosporidiosis in Italian HIV-positive patients by means of an oocyst soluble antigen in an ELISA. J. Infect. 25, 229-236.
95. Gray, J., Cunliffe, C., Ball, J., Graham, D., Dessulberger, U. & Estes, M. 1994 Detection of immunoglobulin M (IgM). IgA, and IgG Norwalk virus-specific antibodies by enzyme-linked immunosorbent assay using baculovirus-expressed Norwalk virus capsid antigen in adult volunteers challenged with Norwalk virus. J. Clin. Microbiol. 32(12), 3059-3063.
96. Gray, J., Jiang, X., Morgan-Capner, P., Dessulberger, U. & Estes, M. 1993 Prevalence of antibodies to Norwalk virus in England: detection by enzyme-linked immunosorbent assay using baculovirus-expressed Norwalk virus capsid antigen. J. Clin. Microbiol. 31(4), 1022-1025.
97. Groves, V., Lehman, D. & Gilbert, G. 1994 Seroepidemiology of cryptosporidiosis in children in Papua New Guinea and Australia. Epidemiol. Infect. 113, 491-499.
98. Hale, A., Lewis, D., Jiang, X. & Brown, D. 1998 Homotypic and heterotypic IgG and IgM antibody responses in adults infected with small round structured viruses. J. Med. Virol. 54, 305-312.
99. Harrison, S., Nelder, R., Hayek, L., Mackenzie, I., Casemore, D. & Dance, D. 2002 Managing a large outbreak of cryptosporidiosis: how to investigate and when to decide to lift a 'boil water' notice. Commun. Dis. Public Health 5, 230-239.
100. Hashkes, P., Spira, D., Decklebaum, R. & Granot, E. 1994 Salivary IgA antibodies to Giardia lamblia in day care center children. Pediatr. Infect. Dis. 13, 953-958.
101. Hayes, E., Matte, T., O'Brien, T., McKinley, T., Logsdon, G., Rose, J., Ungar, B., Word, D., Pinsky, P., Cummings, M., Wilson, M., Long, E., Hurwitz, E. & Juranek, D. 1989 Large community outbreak of cryptosporidiosis due to contamination of a filtered public water supply. New Engl. J. Med. 320, 1372-1376.
102. Hegarty, J., Dowd, M. & Baker, K. 1999 Occurrence of Helicobacter pylori in surface water in the United States. J. Appl. Microbiol. 87(5), 687-701.
103. Herwarldt, B. 2000 Cyclospora cayetanensis: a review, focusing on the outbreaks of cyclosporiasis in the 1990s. Clin. Infect. Dis. 31, 1040-1057.
104. Heyworth, M. 1990 Biological significance of Giardia-specific antibodies. West. J. Med. 153(3), 293-295.
105. Heyworth, M. 1992 Immunology of Giardia and Cryptosporidium infections. J. Infect. Dis. 166, 465-472.
106. Hollister, W., Canning, E. & Willcox, A. 1991 Evidence for widespread occurrence of antibodies to Encephalitozoon cuniculi (Microspora) in man provided by ELISA and other serological tests. Parasitology 102, 33-43.
107. Hopkins, R., Vial, P., Ferreccio, C., Ovalle, J., Prado, P., Sotomayer, V., Russel, R., Wasserman, S. & Morris, J. 1993 Seroprevalence of Helicobacter pylori in Chile: vegetables may serve as a route of transmission. J. Infect. Dis. 168, 222-226.
108. Hrudy, S. & Hrudy, E. 2004 Safe Drinking Water: Lessons Learned From Recent Outbreaks in Affluent Nations. IWA Publishing, London.
109. Hunt, C. 1999 Differentiation of human and animal isolates of Giardia intestinalis. MSc Thesis. Massey University Palmerston North, New Zealand.
110. Hunter, P. 1997a Community study of infectious intestinal disease in England. Brit. Med. J. 319, 258-259.
111. Hunter, P. 1997b Waterborne Disease: Epidemiology and Ecology. Wiley, Chichester.
112. Hunter, P. 2000 Modelling the impact of prior immunity, case misclassification and bias on case-control studies in the investigation of outbreaks of cryptosporidiosis. Epidemiol. Infect. 125, 713-718.
113. Hunter, P., Hughes, S., Woodhouse, S., Syed, Q., Verlander, N., Chalmers, R., Morgan, K., Nichols, G., Beaching, N. & Osborn, K. 2004 Sporadic cryptosporidiosis case-control study with genotyping. Emerging Infect. Dis. 10(7), 1241-1249.
114. Isaac-Renton, J., Blatherwick, J., Bowie, W., Fyfe, M., Khan, M., Li, A., King, A., McLean, M., Medd, L., Moorhead, W., Ong, C. & Robertson, W. 1999 Epidemic and endemic seroprevalence of antibodies to Cryptosporidium and Giardia in residents of three communities with different drinking water supplies. Am. J. Trop. Med. Hygiene 60(4), 578-583.
115. Isaac-Renton, J., Lewis, L., Ong, C. & Nulsen, M. 1994 A second community outbreak of waterborne giardiasis in Canada and serological investigation of patients. Trans. Roy. Soc. Med. Hygiene 88, 395-399.
116. Isaac-Renton, J., Moorhead, W. & Ross, A. 1996 Longitudinal studies of Giardia contamination in two community drinking water supplies: cyst levels, parasite viability, and health implications. Appl. Environ, Microbiol. 62(1),47-54.
117. Isaac-Renton, J., Ong, C., Bowie, W., Lammie, P. & Priest, J. 2003 Cryptosporidium Serology in Human Populations. AWWA Research Foundation, Denver, CO.
118. Istre, G., Dunlop, T., Gaspard, B. & Hopkins, R. 1984 Waterborne giardiasis at a mountain resort: evidence for acquired immunity. Am. J. Public Health 74(6), 602-604.
119. Iturriza-Gómara, M., Clarke, I., Desselberger, U., Brown, D., Thomas, D. & Gray, J. 2004 Seroepidemiology of group C rotavirus infection in England and Wales. Eur. J. Epidemiol. 19, 589-595.
120. Janoff, E. & Smith, P. 1990 The role of immunity in Giardia infections. In Giardiasis (ed. E. Meyer), pp. 215-233. Elsevier Science, Amsterdam.
121. Janoff, E., Smith, P. & Blaser, M. 1988 Acute antibody responses to Giardia lamblia are depressed in patients with AIDS. J. Infect. Dis. 157(4), 798-804.
122. Jenkins, M., Trout, J., Murphy, C., Harp, J., Higgins, J., Wergin, W. & Fayer, R. 1999 Cloning and expression of a DNA sequence encoding a 41-kilodalton Cryptosporidium parvum oocyst wall protein. Clin. Diagn. Lab. Immunol. 6(6), 912-920.
123. Jiang, B., Gentsch, J. & Glass, R. 2002 The role of serum antibodies in the protection against rotavirus disease: an overview. Clin. Infect. Dis. 34, 1351-1361.
124. Jokipii, L., Miettinen, A. & Jokipii, A. 1988 Antibody to cysts of Giardia lamblia in primary giardiasis and in absence of giardiasis. J. Clin. Microbiol. 26(1), 121-125.
125. Jones, J., Kruszon-Moran, D. & Wilson, M. 2003 Toxoplasma gondii infection in the United States, 1999-2000. Emerging. Infect. Dis. 9(11),1371-1374.
126. Jones, J., Kruszon-Moran, D., Wilson, M., McQuillan, G., Navin, T. & McAuley, J. 2001 Toxoplasma gondii infection in the United States: seroprevalence and risk factors. Am. J. Epidemiol. 154(4), 357-365.
127. Joynson, D., Payne, R. & Rawal, B. 1990 Potential role of IgG avidity for diagnosing toxoplasmosis. J. Clin. Pathol. 43, 1032-1033.
128. Kapel, N., Meillet, D., Buraud, M., Favennec, L., Magne, D. & Gobert, J. 1993 Determination of anti-Cryptosporidium coproantibodies by time-resolved immunofluorometric assay. Trans. Roy. Soc. Trop. Med. Hygiene 87, 330-332.
129. Khanna, B., Cutler, A., Israel, N., Perry, M., Lastovica, A., Fields, P. & Gold, B. 1998 Use caution with serologic testing for Helicobacter pylori infection in children. J. Infect. Dis. 178, 460-465.
130. Kjos, S., Jenkins, M., Okhuysen, P. & Chappell, C. 2005 Evaluation of recombinant oocyst protein CP41 for detection of Cryptosporidium-specific antibodies. Clin. Diagn. Lab. Immunol. 12(2), 268-272.
131. Koch, K., Phillips, D., Aber, R. & Current, W. 1985 Cryptosporidiosis in hospital personnel. Ann. Int. Med. 102, 593-596.
132. Kuhls, T., Mosier, D., Crawford, D. & Griffis, J. 1994 Seroprevalence of cryptosporidial antibodies during infancy, childhood, and adolescence. Clin. Infect. Dis. 18, 731-735.
133. Lane, S. & Lloyd, D. 2002 Current trends in research into the waterborne parasite Giardia. Crit. Rev. Microbiol. 28(2), 123-147.
134. Laxer, M., Alcantara, A., Javato-Laxer, M., Menorca, D., Fernando, M. & Ranoa, C. 1990 Immune response to cryptosporidiosis in Philippine children. Am. J. Trop. Med. Hygiene 42(2), 131-139.
135. Leach, C., Koo, F., Kuhls, T., Hilsenback, S. & Jenson, H. 2000 Prevalence of Cryptosporidium parvum infection in children along the Texas-Mexico border and associated risk factors. Am. J. Trop. Med. 62(5), 656-661.
136. Lengerich, E., Addiss, D., Marx, J., Ungar, B. & Juranek, D. 1993 Increased exposure to cryptosporidia among dairy farmers in Wisconsin. J. Infect. Dis. 167, 1252-1255.
137. Ljungström, I. & Castor, B. 1992 Immune response to Giardia lamblia in a waterborne outbreak of giardiasis in Sweden. J. Med. Microbiol. 36, 347-352.
138. Lopez, C., Dykes, A., Juranek, D., Sinclair, S., Conn, J., Christie, R., Lippy, E., Schultz, M. & Mires, M. 1980 Waterborne giardiasis: a communitywide outbreak of disease and a high rate of asymptomatic infection. Am. J. Epidemiol 112, 495-507.
139. Lopman, B., Brown, D. & Koopmans, M. 2002 Human caliciviruses in Europe. J. Clin. Virol. 24, 137-160.
140. Lopman, B., Reacher, M., Duijnhoven, Y., Hanon, F-X., Brown, D. & Koopman, M. 2003 Viral gastroenteritis outbreaks in Europe, 1995-2000. Emerging Infect. Dis. 9(1), 90-96.
141. Luft, B., Payne, D., Woodmansee, D. & Kim, C. 1987 Characterisation of the Cryptosporidium antigens from sporulated oocysts of Cryptosporidium parvum. Infect. Immun. 55(10), 2436-2441.
142. Marshall, M., Naumovitz, D., Ortega, Y. & Sterling, C. 1997 Waterborne protozoan pathogens. Clin. Microbiol. Rev. 10(1), 67-85.
143. Mathieu, E., Levy, D., Veverka, F., Parrish, M-K., Sarisky J., Shapiro, N., Johnston, S., Handzel, T., Hightower, A., Xiao, L., Lee, Y-M., York, S., Arrowood, M., Lee, R. & Jones, J. 2004 Epidemiologic and environmental investigation of a recreational water outbreak caused by two genotypes of Cryptosporidium parvum in Ohio in 2000. Am. J. Trop. Med. 71(5), 582-589.
144. Matsui, S. & Greenberg, H. 2000 Immunity to Calicivirus infection. J. Infect. Dis. 181 (Suppl 2), S331-S335.
145. McDonald, A., MacKenzie, W., Addiss, D., Gradus, M., Linke, G., Zembrowski, E., Hard, M., Arrowood, M., Lammie, P. & Priest, J. 2001 Cryptosporidium parvum-specific antibody among children residing in Milwaukee during the 1993 waterborne outbreak. J. Infect. Dis. 183, 1373-1379.
146. McLaughlin, J., Casemore, D., Moran, S. & Patel, S. 1998 The epidemiology of cryptosporidiosis: application of experimental sub-typing and antibody detection systems to the investigation of water-borne outbreaks. Folia Parasitol. 45, 83-92.
147. Mead, J., Arrowood, M. & Sterling, C. 1988 Antigens of Cryptosporidium sporozoites recognized by immune sera of infected animals and humans. J. Parasitol. 74(1), 135-143.
148. Meinhardt, P., Casemore, D. & Miller, K. 1996 Epidemiological aspects of human cryptosporidiosis and the role of waterborne transmission. Epidemiol. Rev. 18, 118-136.
149. Meldrum, R., Griffiths, J., Smith, R. & Evans, M. 2005 The seasonality of human campylobacter infections and Campylobacter isolates from fresh, retail chickens in Wales. Epidemiol. Infect. 133, 49-52.
150. Meng, X., Purcell, R., Halbur, P., Lehman, J., Webb, D., Tsareva, T., Haynes, J., Thacker, B. & Emerson, S. 1997 A novel virus in swine is closely related to the human hepatitis E virus. Proc. Natl. Acad. Sci. USA 94, 9860-9865.
151. Meng, X., Wiseman, B., Elvinger, F., Guenette, D., Toth, T., Engle, R., Emerson, S. & Purcell, R. 2002 Prevalence of antibodies to hepatitis E virus in veterinarians working with swine and in normal blood donors in the United States and other countries. J. Clin. Microbiol. 40(1), 117-122.
152. Michaud, S., Ménard, S. & Arbeit, R. 2004 Campylobacteriosis, Eastern Township, Québec. Emerging Infect Dis. 10(10), 1844-1847.
153. Miotti, P., Gilman, R., Santosham, M., Ryder, R. & Yolken, R. 1986 Age-related rate of seropositivity of antibody to Giardia lamblia in four diverse populations. J. Clin. Microbiol. 24(6), 972-975.
154. Miron, D., Colodner, R. & Kenes, Y. 2000 Age-related seroprevalence of Cryptosporidium in northern Israel. Israel. Med. Assoc. J. 2, 343-345.
155. Moore, G., Sogandares-Bernal, F., Dennis, M., Dennis, M., Root, D., Beckwith, D. & van Voorhis, D. 1982 Characterization of Giardia lamblia trophozoite antigens using polyacrylamide gel electrophoresis, high performance liquid chromatography, and enzyme-labelled immunosorbent assay. Vet. Parasitol. 10, 229-237.
156. Morgan-Ryan, U., Fall, A., Ward, L., Hijjawi, I., Sulaiman, I., Fayer, R., Thompson, R., Olson, M., Lal, A. & Mao, L. 2002 Cryptosporidium hominis n.sp (Apicomplexa: Cryptosporidiidae) from Homo sapiens. J. Euk. Microbiol. 49(6), 433-440.
157. Moss, D., Bennett, S., Arrowood, M., Hurd, M., Lammie, P. & Wahlquist, S. 1994 Kinetic and isotypic analysis of specific immunoglobulins from crew members with cryptosporidiosis on a US Coast Guard cutter. J. Euk. Microbiol. 41(5), 52S-55S.
158. Moss, D., Bennett, S., Arrowood, M., Wahlquist, S. & Lammie, P. 1998a Enzyme-linked immunoelectrotransfer blot analysis of a cryptosporidiosis outbreak on a US Coast Guard cutter. Am. J. Trop. Med. Hygiene 58(1), 110-118.
159. Moss, D., Chappell, C., Okhuysen, P., DuPont, H., Arrowood, M., Hightower, A. & Lammie, P. 1998b The antibody response to 27-, 17-, and 15-kDa Cryptosporidium antigens following experimental infection in humans. J. Infect. Dis. 178, 827-833.
160. Muller, T., Frost, F., Craun, G. & Calderon, R. 2001 Serological responses to Cryptosporidium infection. Infect. Immun. 69(3), 1974.
161. Nacapunchai, D., Tepmongkol, M., Tharavanij, S., Thammapalerd, N. & Subchareon, A. 1986 A comparative study of four methods for detecting antibody in asymptomatic giardiasis. Southern Asian J. Trop. Med. Hygiene 17(1), 96-100.
162. Nash, T. 1993 Giardia lamblia and giardiasis. In Immunology and Molecular Biology of Parasitic Infections (ed. in R. Warren & N. Agabian), pp. 157-169. Blackwell Scientific, New York.
163. Nash, T. 1997 Antigenic variation in Giardia lamblia and the host's immune response. Phil. Trans: Biol. Sci. 352, 1369-1375.
164. Nayak, N., Ganguly, N., Walia, B., Wahi, V., Kanwar, S. & Mahajan, R. 1987 Specific secretory IgA in the milk of Giardia lamblia-infected and uninfected women. J. Infect. Dis. 155(4), 724-727.
165. Newman, R., Sears, C., Moore, S., Nataro, J., Wuhib, T., Agnew, D., Guerrant, R. & Lima, A. 1999 Longitudinal study of Cryptosporidium infection in children in northeastern Brazil. J. Infect. Dis. 180, 167-175.
166. Newman, R., Shu-Xian, Z., Wuhib, T., Lima, A., Guerrant, R. & Sears, C. 1994 Household epidemiology of Cryptosporidium parvum in an urban community in northeast Brazil. Ann. Int. Med. 120(6), 500-505.
167. Nichols, G. 2005 Fly transmission of Campylobacter. Emerging Infect. Dis. 11(3), 361-364.
168. Nicollier-Jamot, B., Pico, V., Pothier, P. & Kohli, E. 2003 Molecular cloning, expression, self-assembly, antigenicity, and seroepidemiology of a genotype II Norovirus isolated in France. J. Clin. Microbiol. 41(8), 3901-3904.
169. Noel, J., Ando, T., Leite, J., Green, K., Dingle, K., Estes, M., Seto, Y., Monroe, S. & Glass, R. 1997 Correlation of patient immune responses with genetically characterized small round-structured viruses involved in outbreaks of nonbacterial acute gastroenteritis in the United States. J. Med. Virol. 53, 372-383.
170. Okhuysen, P., Chappell, C., Crabb, J., Sterling, C. & DuPont, H. 1999 Virulence of three distinct Cryptosporidium parvum isolates for healthy adults. J. Infect. Dis. 180, 1275-1281.
171. Okhuysen, P., Chappell, C., Sterling, C., Jakubowski, W. & DuPont,
172. Okhuysen, P., Jiang, X., Ye, L., Johnson, P. & Estes, M. 1995 Viral shedding and fecal IgA response after Norwalk virus infection. J. Infect. Dis. 171, 566-569.
173. Ong, C., Eisler, D., Alikhani, A., Fung, V., Tomblin, J., Bowie, W. & Isaac-Renton, J. 2002 Novel Cryptosporidium genotypes in sporadic cryptosporidiosis cases: first report of human infections with a cervine genotype. Emerging Infect. Dis. 8(3), 263-268.
174. Ong, C., Eisler, D., Goh, S., Tomblin, J., Awad-el-Kariem, F., Beard, C., Xiao, L., Sulaiman, I., Lal, A., Fyfe, M., King, A., Bowie, W. & Isaac-Renton, J. 1999 Molecular epidemiology of cryptosporidiosis outbreaks and transmission in British Columbia. Canada. Am. J. Trop. Med. Hygiene 61(1), 63-69.
175. Ong, C., Li, A., Priest, J., Copes, R., Khan, M., Fyfe, M., Marion, S., Roberts, J., Lammie, P. & Isaac-Renton, J. 2005 Enzyme immunoassay of Cryptosporidium-specific immunoglobulin G antibodies to assess longitudinal infection trends in six communities in British Columbia, Canada. Am. J. Trop. Med. Hygiene 73(2), 288-295.
176. Ortega-Mora, L., Tronsco, J., Rojo-Vasquesz, F. & Gomez-Bautista, M. 1992 Cross-reactivity of polyclonal serum antibodies generated against Cryptosporidium parvum oocysts. Infect. Immun. 60(8), 3442-3445.
177. O'Ryan, M., Vial, P., Mamani, N., Jiang, X., Estes, M., Ferrocio, C., Lakkis, H. & Matson, D. 1998 Seroprevalence of Norwalk virus and Mexico virus in Chilean individuals: assessment of independent risk factors for antibody acquisition. Clin. Infect. Dis. 27, 789-795.
178. Palm, J., Weiland, M., Griffiths, W., Griffiths, W., Lungström, J. & Svärd, S. 2003 Identification of immunoreactive proteins during acute human giardiasis. J. Infect. Dis. 187, 1849-1859.
179. Patel, S., McLauchlin, J. & Casemore, D. 1997 A simple SDS-PAGE immunoblotting technique using an enhanced chemiluminescence detection system to identify polyclonal antibody responses to complex cryptosporidial antigen preparation following a monoclonal test and image overlay technique. J. Immunol. Meth. 205, 157-161.
180. Patel, S., Pedraza-Diaz, S., McLauchlin, J. & Casemore, D. 1998 Molecular characterisation of Cryptosporidium parvum from two large suspected waterborne outbreaks. Commun. Dis. Public Health 1(4), 231-233.
181. Payment, P. 1991 Antibody levels to selected enteric viruses in a French-Canadian population in the Province of Quebec. Immunol. Infect. Dis. 1, 317-322.
182. Payment, P., Franco, E. & Fout, G. 1994 Incidence of Norwalk virus infections during a prospective epidemiological study of drinking water related gastrointestinal illness. Can. J. Microbiol. 40, 805-809.
183. Pelosi, E., Lambden, P., Caul, E., Liu, B., Dingle, K., Deng, Y. & Clarke, I. 1999 The seroepidemiology of genogroup 1 and genogroup 2 Norwalk-like viruses in Italy. J. Med. Virol. 58, 93-99.
184. Petry, F. 1998 Epidemiological study of Cryptosporidium parvum in sera of persons from Germany. Infect. 26(1), 7-10.
185. Pollok, R., Aljenaibi, M., McLauchlin, J., Kelly, M. & Farthing, M. 1998 Comparison of enzyme linked immunosorbent assay and western blotting in the detection of anti-cryptosporidial antibodies in the investigation of a waterborne outbreak of cryptosporidiosis. Gut. 42(Suppl 1), A85.
186. Poovorawan, Y., Chatchatee, P. & Chongsrisawat, V. 2002 Epidemiology and prophylaxis if viral hepatitis: a global perspective. J. Gastroenterol. Hepatol. 17, S155-S166.
187. Priest, J., Kwon, J., Moss, D., Roberts, M., Arrowood, M., Dworkin, M., Juranek, D. & Lammie, P. 1999 Detection by immunoassay of serum immunoglobulin G antibodies that recognize Cryptosporidium parvum antigens. J. Clin. Microbiol. 37(5), 1385-1392.
188. Priest, J., Lammie, P., Li, A., Khan, M., Ong, C. & Isaac-Renton, J. 2003 Quality assurance considerations in Cryptosporidium antibody tests (Authors' reply). Clin. Diagnost. Lab. Immun. 10(1), 193-194.
189. Priest, J., Li, A., Khan, M., Arrowood, M., Lammie, P., Ong, C., Roberts, M. & Isaac-Renton, J. 2001 Enzyme immunoassay of antigen-specific immunoglobulin G antibodies in longitudinal serum samples from patients with cryptosporidiosis. Clin. Diagnost. Lab. Immunol. 8(2), 415-423.
190. Priest, J., Bern, C., Roberts, J., Kwon, J., Lescano, A., Checkley, W., Cabrera, L., Moss, D., Arrowood, M., Sterling, C., Gilman, R. & Lammie, P. 2005 Changes in serum immunoglobulin G levels as a marker for Cryptosporidium sp. infection in Peruvian children. J. Clin. Microbiol. 43, 5298-5300.
191. Priest, J., Bern, C., Xiao, L., Roberts, J., Kwon, J., Lescano, A., Checkley, W., Cabrera, L., Moss, D., Arrowood, M., Sterling, C., Gilman, R. & Lammie, P. 2006a Longitudinal analysis of Cryptosporidium species-specific immunoglobulin G antibody responses in Peruvian children. Clin. Vacc. Immunol. 13(1), 123-131.
192. Raina, P., Pollari, F., Teare, G., Gross, M. J., Barry, A. J. & Wilson, J. B. 1999 The relationship between E. coli indicator bacteria in well-water and gastrointestinal illness in rural families. Rev. Canad. De Santé Publ. 90(3), 172-175.
193. Rangel, J., Sparling, P., Crowe, C., Griffin, P. & Swerdlow, D. 2005 Epidemiology of Escherichia coli 0157:H7 outbreaks, United States, 1982-2002. Emerging Infect. Dis. 11 (4), 603-609.
194. Reiner, D. & Gillin, F. 1992 human secretory and serum antibodies recognize environmentally induced antigens of Giardia lamblia. Infect. Immun. 60(2), 637-643.
195. Répérant, J-M., Naciri, M., Iochmann, S., Tilley, M. & Bout, D. 1994 Major antigens of Cryptosporidium parvum recognized by serum antibodies from different infected animal species and man. Vet. Parasitol. 55, 1-13.
196. Ridley, M. & Ridley, D. 1976 Serum antibodies and jejunal histology in giardiasis associated malabsorption. J. Clin. Pathol. 29, 30-34.
197. Riggs, M. 2002 Recent advances in cryptosporidiosis: the immune response. Microbes Infection 4, 1067-1080.
198. Rodrigues, L., Cowden, J., Wheeler, J., Sethi, D., Wall, P., Cumberland, P., Tompkins, D., Hudson, M., Roberts, J. & Roderick, P. 2001 The study of infectious intestinal disease in England: risk factors for cases of infectious intestinal disease with Campylobacter jejuni infection. Epidemiol. Infect. 127, 185-193.
199. Roitt, I. & Delves, P. 2001 Essential Immunology. Blackwell Science, Oxford.
200. Rose, J., Epstein, P., Lipp, E., Sherman, B., Bernard, S. & Patz, J. 2001 Climate variability and change in the United States: potential impacts on water- and foodborne disease caused by microbiologic agents. Environ. Health Perspect. 109(Suppl 2), 211-221.
201. Roy, S., DeLong, S., Stenzel, S., Shiferaw, B., Roberts, J., Khalakdina, A., Marcus, R., Segler, S., Shah, D., Thomas, S., Virgia, D., Zansky, S., Dietz, V. & Beach, M. 2004 Risk factors for sporadic cryptosporidiosis among immunocompetent persons in the United States from 1999 to 2001. J. Clin. Microbiol. 42(7), 2944-2951.
202. Roy, S. L., Scallan, E. & Beach, M. J. 2006 The rate of acute gastrointestinal illness in developed countries. J. Wat. Health 4(Suppl. 2), 31-70.
203. Said, B., Wright, F. & Nichols, G. 2003 Outbreaks of infectious disease associated with private drinking water supplies in England and Wales, 1970-2000. Epidemiol. Infect. 130, 469-479.
204. Schaub, S. & Oshiro, R. 2000 Public health concerns about Caliciviruses as waterborne contaminants. J. Infect. Dis. 181(Suppl. 2), S374-S380.
205. Schlauder, G., Dawson, G., Erker, J., Kwo, P., Knigge, M., Smalley, D., Rosenblatt, J., Desai, S. & Mushahwar, I. 1998 The sequence and phylogenetic analysis of a novel hepatitis E virus isolated from patient with a cute hepatitis reported in the United States. J. Gen. Virol. 79, 447-456.
206. Shandera, W. 1990 From Leningrad to the day-care center. The ubiquitous Giardia lamblia. West. J. Med. 153, 154-159.
207. Smit, T., Bos, P., Peenze, I., Jiang, X., Estes, M. & Steele, A. 1999 Seroepidemiological study of genogroup I and II Calicivirus infections in South and Southern Africa. J. Med. Virol. 59, 227-231.
208. Smith, L., Priest, J., Lammie, P. & Mead, J. 2001 Human T and B cell immunoreactivity to a recombinant 23-kDa Cryptosporidium parvum antigen. J. Parasitol. 87(3), 704-707.
209. Smith, P., Gillin, F., Brown, W. & Nash, T. 1981 IgG antibody to Giardia lamblia detected by enzyme-linked immunosorbent assay. Gastroenterology 80, 1476-1480.
210. Soliman, M., Taghi-Kilani, R., Abou-Shady, A., El-Mageid, S., Handousa, A., Hegazi, M. & Belesovic, M. 1998 Comparison of serum responses to Giardia lamblia in symptomatic and asymptomatic patients. Am. J. Trop. Med. Hygiene 58(2), 232-239.
211. Spenser, K., Soave, R., Acosta, A., Gellin, B., Prince, A., Ramos, L. & Jacobs, J. 1997 Cryptosporidiosis in HIV-infected persons: prevalence in a New York City population. Int. J. Infect. Dis. 1, 217-221.
212. Steinberg, E., Mendoza, C., Glass, R., Arana, B., Lopez, B., Mejia, M., Gold, B., Priest, J., Bibb, W., Monroe, S., Bern, C., Bell, B., Hoekstra, R., Klein, R., Mintz, E. & Luby, S. 2004 Prevalence of infection with waterborne pathogens: a scroepidemiologic study in children 6-36 months old in San Juan Sacatepequez, Guatemala. Am. J. Trop. Med. Hygiene 70(1), 83-88.
213. Steiner, T. & Guerrant, R. 1996 The pathogenesis of and host response to Cryptosporidium parvum. Curr. Opin. Infect. Dis. 9, 156-160.
214. Sterling, C., Gilman, R., Sinclair, N., Cama, V., Castillo, R. & Diaz, F. 1991 The role of breast milk in protecting urban Peruvian children against cryptosporidiosis. J. Protozool. 38(6), 23S-25S.
215. Sterling, C. & Ortega, Y. 2004 Cyclospora cayetanensis: an emergent and still perplexing coccidian parasite. In The Pathogenic Enteric Protozoa: Giardia, Entamoeba, Cryptosporidium and Cyclospora (ed. C. Sterling & R. Adam), pp. 43-57. Kluwer, Boston.
216. Strauss, B., King, W., Ley, A. & Hoey, J. 2001 A prospective study of rural drinking water quality and acute gastrointestinal illness. Bio. Med. Centr. Public Health 1(8) Available at: http:\\www.biomedcentral.com/1471-2458/1/8.
217. Stuart, J., Orr, H., Warburton, F., Jeyakanth, S., Pugh, C., Morris, I., Sarangi, J. & Nichols, G. 2003 Risk factors for sporadic giardiasis: a case-control study in Southwestern England. Emerging Infect. Dis. 9(2), 229-233.
218. Sullivan, P., Neale, G., Cevallos, A. & Farthing, M. 1991 Evaluation of specific serum anti-Giardia IgM antibody response in diagnosis of giardiasis in children. Trans. Roy. Soc. Trop. Med. Hygiene 85, 748-749.
219. Sullivan, R., Linneman, C., Clark, C. & Walzer, P. 1987 Seroepidemiologic study of giardiasis patients and high-risk groups in a Midwestern city in the United States. Am. J. Public Health 77(8), 960-963.
220. Tanriverdi, S., Arslan, M., Akiyoshi, D., Tzipori, S. & Widmer, G. 2003 Identification of genotypically mixed Cryptosporidium parvum populations in humans and calves. Mol. Biochem. Parasitol. 130, 13-22.
221. Tarleton, J. & Petri, W. 2004 Pathogenesis and immunity to Entamoeba histolytica. In The Pathogenic Enteric Protozoa: Giardia, Entamoeba, Cryptosporidium and Cyclospora (ed. C. Sterling & R. Adam), pp. 75-89. Kluwer, Boston.
222. Taylor, G. & Wenman, W. 1987 Human immune response to Giardia lamblia infection. J. Infect. Dis. 155(1), 137-140.
223. Tellez, A., Winiecka-Krusnell, J., Paniagua, M. & Linder, E. 2003 Antibodies in mother's milk protect children against giardiasis. Scand. J. Infect. Dis. 35, 322-325.
224. Teunis, P., Chappell, C. & Okhuysen, P. 2002 Cryptosporidium dose response studies: variation between isolates. Risk Analysis 22, 175-183.
225. Thompson, R. 2004 Epidemiology and zoonotic potential of Giardia infections. In The Pathogenic Enteric Protozoa: Giardia, Entamoeba, Cryptosporidium and Cyclospora (ed. C. Sterling & R. Adam), pp. 1-13. Kluwer, Boston.
226. Tillett, H., De Louvois, J. & Wall, P. 1998 Surveillance of outbreaks of waterborne infectious disease: categorizing levels of evidence. Epidemiol. Infect. 120, 37-42.
227. Tzipori, S. & Campbell, I. 1981 Prevalence of Cryptosporidium antibodies in 10 animal species. J. Clin. Microbiol. 34, 455-456.
228. Udezulu, I., Visvesvara, G., Moss, D. & Leitch, G. 1992 Isolation of two Giardia lamblia (WB strain) clones with distinct protein and antigenic profiles and differing infectivity and virulence. Infect. Immun. 60(6), 2274-2280.
229. Ungar, B., Gilman, R., Lanata, C. & Perez-Schael, I. 1988 Seroepidemiology of Cryptosporidium infection in two Latin American populations. J. Infect. Dis. 157(3), 551-556.
230. Ungar, B., Mulligan, M. & Nutman, T. 1989 Serologic evidence of Cryptosporidium infection in US volunteers before and during Peace Corps service in Africa. Arch. Intern. Med. 149, 894-897.
231. Ungar, B. & Nash, T. 1986 Quantification of specific antibody response to Cryptosporidium antigens by laser densitometry. Infect. Immun. 53(1), 124-128.
232. Ungar, B., Soave, R., Fayer, R. & Nash, T. 1986 Enzyme immunoassay detection of immunoglobulin M and G antibodies to Cryptosporidium in immunocompetent and immunocompromised persons. J. Infect. Dis. 153(3), 570-578.
233. US EPA 1998 Giardia: Human Health Criteria Document. Report EPA-823-R-002. United States Environmental Protection Agency, Office of Water, Washington, DC.
234. Van Gool, T., Biderre, C., Delbac, F., Wentink-Bonnema, E., Peek, R. & Vivarès, C. 2004 Serodiagnostic studies in an immunocompetent individual infected with Encephalitozoon cuniculi. J. Infect. Dis. 189, 2243-2249.
235. Venkatesan, P. & Wakelin, D. 1993 ELISAs for parasitologists: lies, damned lies and ELISAs. Parasitol. Today. 9(6), 228-232.
236. Vinayak, V. & Kumkum, K. 1989 Serum antibodies to giardial surface antigens: lower titres in persistent than in nonpersistent giardiasis. J. Med. Microbiol. 30, 207-212.
237. Von Bonsdorff, C-H. & Maunula, L. 2003 Microbiology and the investigation of waterborne outbreaks: typing of Norwalk-like virus. In Drinking Water and Infectious Disease: Establishing the Links (ed. P. Hunter, M. Waite & E. Ronchi), pp. 79-85. CRC Press, Boca Raton, FL.
238. Walterspiel, J., Morrow, A., Guerrero, M., Ruiz-Palacios, G. & Pickering, L. 1994 Secretory anti- Giardia lamblia antibodies in human milk: protective effect against diarrhea. Pediatr. 93(1), 28-31.
239. Ward, P., Deplazes, P., Regli, W., Rinder, H. & Mathis, A. 2002 Detection of eight Cryptosporidium genotypes in surface and waste waters in Europe. Parasitology 124, 359-368.
240. Widdowson, M., Sulka, A., Bulens, S., Beard, R., Chaves, S., Hammond, R., Salehi, E., Swanson, E., Totaro, J., Woron, R., Mead, P., Bresee, J., Monroe, S. & Glass, R. 2005a Norovirus and foodborne disease. United States, 1991-2000. Emerging Infect. Dis. 11(1), 95-102.
241. Widdowson, M., Monroe, S. & Glass, R. 2005b Are Noroviruses emerging? Emerging Infect Dis. 11(5), 735-737.
242. Willocks, L., Crampin, L., milne, C., Seng, C., Susman, M., Gair, R., Moulsdale, M., Shafi, S., Wall, R. & Lightfoot, N. 1998 A large outbreak of cryptosporidiosis associated with a public water supply from a deep chalk borehole. Commun. Dis. Pub. Hlth. 1, 239-243.
243. Wyatt, C. & McDonald, V. 2004 Innate and T cell-mediated immune responses in cryptosporidiosis. In The Pathogenic Enteric Protozoa: Giardia, Entamoeba, Cryptosporidium and Cyclospora (ed. C. Sterling & R. Adam), pp. 91-101. Kluwer, Boston.
244. Xiao, L., Fayer, R., Ryan, U. & Upton, S. 2004 Cryptosporidium taxonomy: recent advances and implications for public health. Clin. Microbiol. Rev. 17(1), 72-97.
245. Xiao, L. & Ryan, U. 2004 Cryptosporidiosis: an update in molecular epidemiology. Curr. Opin. Infect. Dis. 17, 483-490.
246. Zhou, L., Fayer, R., Trout, J., Ryan, U., Schaeffer, F., III & Xiao, L. 2004 Genotypes of Cryptosporidium species infecting furbearing mammals differ from those of species infecting humans. Appl. Environ. Microbiol. 70(12), 7574-7577.
247. Zu, S-X., Fang, G-D., Fayer, R. & Guerrant, R. 1992 Cryptosporidiosis: pathogenesis and immunology. Parasitol. Today 8(1), 24-27.
248. Zu, S-X, Li, J., Barrett, L., Payer, R., Shu, S., McAuliffe, J., Roche, J. & Guerrant, R. 1994 Seroepidemiologic study of Cryptosporidium infection in children from rural communities of Anhui. Am. J. Trop. Med. 51(1), 1-10.