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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Outbreak of Cryptosporidium at a Pool Party, Hillsdale County, Michigan, 2012

Branch-Hillsdale-St.Joseph Community Health Agency (CHA) reported an outbreak of cryptosporidiosis in 28 people who participated in a private pool party. Investigators said the problem resulted from improper operation of a system that uses salt to create chlorine to disinfect the pool. CHA authorities said the owner was not running the system enough for the heavy load of people at the 3-day party so the residual chlorine was not there.

  • Outbreak began:
  • July 2012
  • Affected Country:
  • US
  • Affected States/Territories:
  • N/A
  • Organism(s):
  • Cryptosporidum
  • Vehicle(s):
  • Water, recreational
  • Molecular Results Available:
  • Unknown
  • Test Results:
  • None
  • Location(s):
  • Private Home
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 28
  • Number ill by Case Definition Known:
  • Unknown
  • Number Laboratory Confirmed Cases:
  • N/A
  • Number Probable Cases:
  • N/A
  • Number Possible Cases:
  • N/A
  • Anyone Hospitalized:
  • Unknown
  • Number Hospitalized:
  • Unknown
  • Any Deaths:
  • Unknown
  • Number Dead:
  • Unknown

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