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Cryptosporidiosis and surface water

M M Gallaher1, J L Herndon, L J Nims

  • 1New Mexico Health and Environment Department, Santa Fe, NM 87504-0968.

American Journal of Public Health
|January 1, 1989
PubMed

Insights

Drinking untreated surface water was a significant risk factor for cryptosporidiosis in New Mexico. Among children, attending daycare with ill peers also increased illness risk.

Area of Science:

  • Epidemiology
  • Infectious Diseases
  • Public Health

Background:

  • Cryptosporidiosis is a significant cause of diarrheal illness globally.
  • Identifying risk factors is crucial for effective prevention strategies.

Purpose of the Study:

  • To investigate risk factors associated with cryptosporidiosis outbreaks in New Mexico.
  • To inform public health interventions for disease control.

Main Methods:

  • A case-control study was conducted between July and October 1986.
  • 24 laboratory-confirmed cryptosporidiosis cases and 46 neighborhood controls were interviewed.
  • Data collected included water consumption habits and daycare attendance.

Main Results:

  • A strong association was found between drinking untreated surface water and cryptosporidiosis (5/24 cases vs. 0/46 controls).
  • Among children, attending daycare with other ill children significantly increased the odds of illness (odds ratio = 13.1).
  • The majority of case-patients (71%) were female, with ages ranging from 4 months to 44 years (median 3 years).

Conclusions:

  • Untreated surface water consumption is a primary risk factor for cryptosporidiosis.
  • Daycare settings represent a significant transmission route for cryptosporidiosis among children.
  • Public health advisories regarding safe water sources and daycare hygiene are recommended.

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