Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-24T02:37:25.212Z Has data issue: false hasContentIssue false
  • English
  • Français

Cryptosporidiosis in the Isle of Thanet; an outbreak associated with local drinking water

Published online by Cambridge University Press:  15 May 2009

C. Joseph ,
G. Hamilton ,
M. O'Connors ,
S. Nicholas ,
R. Marshall ,
R. Stanwell-Smith ,
R. Sims ,
E. Ndawula ,
U. Casemore  and
P. Gallagher
...Show all authors
C. Joseph
Affiliation:
PHLS Communicable Disease Surveillance Centre, 61 Colindale Ave, London NW9 5EQ
G. Hamilton
Affiliation:
Institute of Public Health, Broomhill, David Salomon's House, Tunbridge Wells, Kent TN3 0TG
M. O'Connors
Affiliation:
PHLS Communicable Disease Surveillance Centre, 61 Colindale Ave, London NW9 5EQ
S. Nicholas
Affiliation:
PHLS Communicable Disease Surveillance Centre, 61 Colindale Ave, London NW9 5EQ
R. Marshall
Affiliation:
PHLS Communicable Disease Surveillance Centre, 61 Colindale Ave, London NW9 5EQ
R. Stanwell-Smith
Affiliation:
PHLS Communicable Disease Surveillance Centre, 61 Colindale Ave, London NW9 5EQ
R. Sims
Affiliation:
Canterbury and Thanet Health Authority, 3 Royal Crescent, Ramsgate, Kent CT11 9PF
E. Ndawula
Affiliation:
Canterbury and Thanet Health Authority, Kent and Canterbury Hospital, Canterbury, Kent CT1 3NG
U. Casemore
Affiliation:
Rhyl Public Health Laboratory, Ysbyty Glan Clwyd, Bodelwyddan, Rhyl, Clwyd LL18 5UJ
P. Gallagher
Affiliation:
Thanet District Council, PO Box 9, Margate. Kent CT9 1XZ
P. Harnett
Affiliation:
Southern Water Services Ltd (Kent Division), Capstone Rd. Chatham, Kent ME5 7QA
Rights & Permissions [Opens in a new window]

Summary

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

An outbreak of cryptosporidiosis occurred in the Isle of Thanet during December 1990 and January 1991. A total of 47 cases ranging in age from 2 months to 85 years were identified in residents from the Margate, Broadstairs and Ramsgate areas, with dates of onset of illness from 3 December to 14 January. A case-control study demonstrated a strong statistical association between illness and the consumption of unboiled tap water from a particular source, with evidence of a dose–response relationship. Although no cryptosporidial oocysts were identified in samples of untreated or treated water taken during the investigation, the results were consistent with the view that the source of infection was treated river water which was used to supplement borehole water.

Type
Research Article
Information
Epidemiology & Infection , Volume 107 , Issue 3 , December 1991 , pp. 509 - 519
Copyright
Copyright © Cambridge University Press 1991

References

REFERENCES

1.Casemore, DP. Epidemiological aspects of human cryptosporidiosis. Epidemiol Infect 1990: 104: 1–28.CrossRefGoogle ScholarPubMed
2. Anon. Crytosporidium in water supplies. Report of the group of experts. London; HMSO, 1990.Google Scholar
3.Dean, AD, Dean, JA, Burton, JH, Dioker, RC. Epi Info. Version 5: a word processing, database, and statistics program for epidemiology on microcomputers. Atlanta, Georgia: Centers for Disease Control. 1990.Google Scholar
4. Epidemiological graphics, estimation, and testing package. Statistics and epidemiology research corporation and Cytel software corporation. Cambridge. USA: 1985–1990.Google Scholar
5.Schlesseman, JJ. Case-control studies. Oxford: Oxford University Press, 1982.Google Scholar
6. Department of the Environment Standing Committee of Analysts. Isolation and identification of giardia cysts. Cryptosporidium oocysts and free-living pathogenic amoebae in water etc. HMSO: London. 1990.Google Scholar
7.Barer, MR, Wright, AE. Cryptosporidium and water. A review. Letters App Microbiol 1990; 11: 271–7.CrossRefGoogle Scholar
8. Anon. Communicable Disease Report 1991; 1: (4)19.Google Scholar
9.D'Antonio, RG, Winn, MD, Taylor, JP, et al. A waterborne outbreak of cryptosporidiosis in normal hosts. Ann Intern Med 1985: 103: 886–8.CrossRefGoogle ScholarPubMed
10.Hayes, EB, Matte, TD, O'Brien, TR, et al. Contamination of a conventionally treated filtered public water supply by Cryptosporidium associated with a large community outbreak of cryptosporidiosis. New Eng J Med 1989; 320: 1372–6.CrossRefGoogle Scholar
11.Smith, HV, Girdwood, RWA, Patterson, WJ, et al. Waterborne outbreak of cryptosporidiosis. Lancet 1988: ii: 1484.CrossRefGoogle Scholar
12.Dick, TA. Report of enquiry into water supplies in Oxford and Swindon following an outbreak of cryptosporidiosis during February-March 1989. Thames Water. London 1989.Google Scholar
13.Rush, BA, Chapman, PA, Ineson, RW. Cryptosporidium and drinking water. Lancet 1987; ii: 632–3.CrossRefGoogle Scholar
14.Aston, R, Mawer, SL, Casemore, D. Report of the outbreak control group convened to co-ordinate the investigation and control of the outbreak of cryptosporidiosis in North Humberside. December 1989-May 1990. Formal report to the Local Authorities of Beverley and Kingston upon Hull. 1991.Google Scholar
15.Galbraith, NS. Cryirtosporidiosis: another source. Br Med J 1989; 298; 276–7.Google Scholar
16. Anon. Interim group report on Cryptosporidium in water supplies. Cryptosporidium in water supplies. Report of the group of experts. Part III (1): London: HMSO. 1990.Google Scholar
17. Anon. Water treatment processes and removal of cryptosporidial oocysts. Cryptosporidium in water supplies. Report of the group of experts. Part I (7): London: HMSO. 1990.Google Scholar
18.Logsdon, GS. Microbiology and drinking water filtration. In: McFeters, GA. ed. Drinking water microbiology. Heidelberg: Springer-Verlag. 1990.CrossRefGoogle Scholar
19. Anon. Cryptosporidium in water supplies. Report of the group of experts. Part I (13): London; HMSO. 1990.Google Scholar
20.Smith, HV, Rose, JB. Waterborne cryptosporidiosis. Parasitol Today 1990; 6: 8–12.CrossRefGoogle ScholarPubMed