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Cryptosporidiosis, 2009: DCN - Minnesota Dept. of Health

Cryptosporidiosis, 2009

During 2009, 349 confirmed cases of cryptosporidiosis (6.7 per 100,000 population) were reported. This is 77% higher than the median number of cases reported annually from 1998 to 2008 (median, 197 cases; range, 91 to 302). The median age of cases in 2009 was 26 years (range, 9 months to 101 years). Children 10 years of age or younger accounted for 28% of cases. Sixty-three percent of cases occurred during July through October. The incidence of cryptosporidiosis in the Southwestern, West Central, South Central, and Southeastern districts (36.2, 15.7, 13.6 and 11.9 cases per 100,000, respectively) was significantly higher than the statewide incidence. Only 41 (12%) reported cases occurred among residents of the metropolitan area (1.5 per 100,000). Fifty-two (15%) cases required hospitalization, for a median of 3 days (range, 1 to 15 days).

Four outbreaks of cryptosporidiosis were identified in 2009, accounting for 28 laboratory-confirmed cases. One recreational waterborne outbreak occurred, including 37 cases (21 laboratory-confirmed) associated with a community aquatic center. One outbreak of cryptosporidiosis associated with calf contact among workers at a zoo accounted for 4 cases (2 laboratory-confirmed). Two outbreaks associated with daycares accounted for 4 (3 laboratory-confirmed) and 2 (both laboratory-confirmed) cases, respectively.

Updated Thursday, 13-Oct-2022 15:01:15 CDT