How is cryptosporidiosis prevented?

Updated: Nov 11, 2019
  • Author: Melinda B Tanabe, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Water purification is the most important public health measure in the prevention of cryptosporidiosis. [56, 57] Because chlorination has little effect on the oocysts, water purification should involve flocculation and filtration (using filters with a pore size of 1-4 μm). Ultraviolet radiation and ozonization are other means of disinfecting contaminated water. Decontamination can also be achieved by bringing water to a boil.

Prompt, aggressive measures, including temporary closure of pools, must be carried out in cases of suspected fecal contamination of recreational water. People with diarrhea should not use recreational water, and those with cryptosporidiosis should not use recreational waters for 2 weeks after symptoms resolve.

Wearing gloves and handwashing after handling diapers can prevent person-to-person spread in daycare centers and hospitals. Endoscopes and similar instruments should be disinfected between uses. Prompt antiparasitic treatment of infected children decreases oocyst shedding.

Individuals with AIDS or another immunosuppressive condition should avoid swimming in communal pools or recreational water.

In hospitalized patients, contact precautions are strictly recommended in addition to standard precautions for patients who are incontinent or who use diapers.


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