Foodborne Illness Outbreak Database

This database provides summaries of significant food and water related outbreaks occurring since 1984 caused by E. coli, Salmonella, Hepatitis A, Campylobacter and other pathogens. Read more »

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2012 Outbreak of Cryptosporidosis Associated with Hotel Waterpark, Baxter, Minnesota

In March 2012 Minnesota Department of Health (MDH) staff investigated an outbreak of Cryptosporidium infections among users of a waterpark located in Baxter, Minnesota. Illness histories and exposure information was obtained from 118 waterpark guests. Forty-three (36%) cases were identified. One waterpark guest submitted a stool sample to the MDH Public Health Laboratory. The specimen was positive for Cryptosporidium parvum subtype BGP4. Of the 42 cases with known information, 9 visited a healthcare provider. One case was hospitalized for 3 days. The waterpark voluntarily closed in order to be superchlorinated at 20 parts per million for 12.5 hours, the necessary chlorine level and time needed to inactivate Cryptosporidium. The original source of contamination was not identified and MDH officials theorized that an infectious waterpark user most likely introduced the parasite into the park.

  • Outbreak began:
  • March 2012
  • Affected Country:
  • US
  • Affected States/Territories:
  • Minnesota
  • Organism(s):
  • Cryptosporidium
  • Vehicle(s):
  • recreational water
  • Molecular Results Available:
  • Yes
  • Test Results:
  • BGP4
  • Location(s):
  • waterpark
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 43
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 42
  • Number Probable Cases:
  • 1
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • Yes
  • Number Hospitalized:
  • 1
  • Any Deaths:
  • No
  • Number Dead:
  • 0
  • Any References:
  • No

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