Waterborne Illness Surveillance Statistics
Epidemiologists at the Minnesota Department of Health conduct surveillance and epidemiologic studies to track waterborne diseases and identify waterborne disease outbreaks in Minnesota.
Waterborne Illness Outbreaks
Drinking water outbreaks
From 2005 to 2014 there were two reported drinking water illness outbreaks in Minnesota resulting in 12 known illnesses. One was an outbreak of giardiasis associated with drinking well water at a campground and the other was an outbreak of giardiasis associated with drinking surface water along a hiking trail.
Recreational water outbreaks
From 2005 to 2014 there were 47 reported recreational water illness outbreaks in Minnesota resulting in 767 known illnesses. The largest proportion (47%) of outbreaks were caused by Cryptosporidium. Other pathogens associated with outbreaks were: E. coli O157, Legionella, norovirus, Pseudomonas,and Shigella. Of these 47 waterborne outbreaks, the most common type of illness experienced was acute gastrointestinal illness, reported in 32 (68%) outbreaks, followed by dermatitis reported in 8 (17%) outbreaks and acute respiratory illness reported in 7 (15%) outbreaks. Outbreaks occurred in a variety of settings; 26 occurred at swimming pools, 11 at lakes, 7 at spa pools, 2 at splash pads, and 1 at a swimming pond.
Charts, graphs, and maps
- Waterborne Illness Outbreak Statistics: 2005-2014 (PDF)
Map showing the location of reported recreational waterborne illness outbreaks in Minnesota by county and chart showing the number of recreational waterborne illness outbreaks by type of illness.
Control Newsletter Annual Summaries
Annual summaries of surveillance data for diseases and conditions reportable to the Minnesota Department of Health.
of Gastroenteritis Outbreaks in Minnesota
Summary of gastroenteritis outbreaks in Minnesota that is published each year. Outbreaks summarized include those from food, water, animal contact, and person-to-person transmission.