From 2008 to 2017, there were 3,370 reported cases of cryptosporidiosis and 68 reported outbreaks of cryptosporidiosis in Minnesota. Of these 68 outbreaks, 26 (38%) were attributed to waterborne transmission, 25 (37%) were attributed to person-to-person contact, 14 (21%) were attributed to animal contact, 3 (4%) were attributed to foodborne transmission, and 1 (1%) was due to an unknown transmission route.
During 2017, 481 cases of cryptosporidiosis (8.7 per 100,000 population) were reported. This is markedly higher than the median number of cases reported annually from 2007 to 2016 (median, 331 cases; range, 235 to 465). The median age of cases in 2017 was 26 years (range, 6 months to 88 years). Children 10 years of age or younger accounted for 20% of cases. Fifty-five percent of cases occurred during July through October. The incidence of cryptosporidiosis in the Southwestern, Southeastern, Northwestern, and West Central districts (52.0, 18.0, 15.8, and 15.4 cases per 100,000, respectively) was significantly higher than the statewide incidence. Only 99 (21%) reported cases occurred among residents of the metropolitan area (3.3 per 100,000). Forty-seven (10%) cases required hospitalization, for a median of 4 days (range, 2 to 19 days).
Charts, graphs, and maps:
- Average Yearly Incidence of Reported Cryptosporidiosis Cases in Minnesota by County, 2008-2017 (PDF)
Map of the average yearly incidence of reported cryptosporidiosis cases in Minnesota by county.
- Reported Cryptosporidiosis Cases in Minnesota, 2008-2017 (PDF)
Bar graph of the reported cryptosporidiosis cases in Minnesota.
- Reported Outbreaks of Cryptosporidiosis in Minnesota by Transmission Route, 2008-2017 (PDF)
Bar graph of the reported outbreaks in Minnesota by transmission route.
- Cryptosporidiosis, 2016
Minnesota Department of Health Disease Control Newsletter, Annual Summary of Communicable Diseases Reported to the Minnesota Department of Health.
- Cryptosporidiosis, 2015
- Cryptosporidiosis, 2014
- Cryptosporidiosis, 2013
- Cryptosporidiosis, 2012
- Cryptosporidiosis, 2011
- Cryptosporidiosis, 2010
- Cryptosporidiosis, 2009
- Cryptosporidiosis, 2008
- Cryptosporidiosis, 2007
- Cryptosporidiosis, 2006
- Cryptosporidiosis, 2005
- Cryptosporidiosis, 2004
- Cryptosporidiosis, 2003
- Cryptosporidiosis, 2002
- Cryptosporidiosis, 2001
- Cryptosporidiosis, 2000
Do you suspect that you have a foodborne or waterborne illness? Visit reporting suspected foodborne/waterborne illnesses.