Skip directly to search Skip directly to A to Z list Skip directly to site content
CDC Home

Volume 8, Number 6—June 2002

Research

Cryptosporidium Oocysts in a Water Supply Associated with a Cryptosporidiosis Outbreak

Andrew D. Howe*, Sue Forster*, Stephen Morton*, Roberta Marshall*, Keith S. Osborn†, Peter Wright‡, and Paul R. Hunter§Comments to Author 
Author affiliations: *East Lancashire Health Authority, Nelson, United Kingdom; †United Utilities Water PLC, Warrington, United Kingdom; ‡Public Health Laboratory, Preston, United Kingdom; §University of East Anglia, Norwich, United Kingdom

Main Article

Table 1

Age-specific attack rates for cryptosporidiosis in residents of water zone 97, Clitheroe, March 2000

Age group Cases (n=51) Population Rate/10,000 95% confidence interval
<4 26 945 275.1 170.8 to 379.4
5–14 9 2,283 39.4 13.7 to 65.1
15–44 12 6,822 17.6 7.6 to 27.5
>45 4 7,202 5.6 0.1 to 11.0
Total 51 1,7252 29.6 21.5 to 37.7

Main Article

Top of Page

USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO