Cryptosporidiosis, 2019

In 2019, 490 cases of cryptosporidiosis (8.73 per 100,000 population) were reported. This is markedly higher than the median number of cases reported annually from 2009 to 2018 (median, 348 cases; range, 307 to 532). The median age was 28 years (range, 5 months to 96 years). Children 10 years of age or younger accounted for 22% of cases. Fifty-six percent of cases occurred during July through October. The incidence of cryptosporidiosis in the Southwestern, Southeastern, South Central, Northwestern, and West Central districts (23.5, 23.5, 17.2, 16.4 and 13.2 cases per 100,000, respectively) was significantly higher than the statewide incidence. Only 132 (27%) cases occurred among residents of the metropolitan area (4.3 per 100,000). Thirty-eight (8%) cases required hospitalization, for a median of 4 days (range, 2 to 190 days). No deaths were reported.

Five confirmed outbreaks of cryptosporidiosis were identified in Minnesota in 2019, accounting for 22 laboratory-confirmed cases. One recreational water outbreak of cryptosporidiosis occurred, accounting for 124 cases (16 laboratoryconfirmed). The outbreak was associated with multiple locations of the same swim school (Hennepin and Ramsey counties) Two outbreaks associated with animal contact accounted for 13 cases (3 laboratoryconfirmed); these outbreaks occurred in Olmsted and Mower counties. Two outbreaks of cryptosporidiosis due to person-to-person transmission in child care settings accounted for 12 cases (3 laboratory-confirmed); these outbreaks occurred in Douglas and Renville counties.

• Find up to date information at>> Cryptosporidiosis (Cryptosporidium spp.)
• Full issue>> Annual Summary of Communicable Diseases Reported to the Minnesota Department of Health, 2019