General
This document contains a flowchart that illustrates the steps that should be taken during a Cryptosporidium investigation.
Water samples can be tested for pathogens such as Cryptosporidium. These samples can then potentially be linked to clinical isolates from individuals who visited a recreational water venue associated with cluster of cases. Collecting a sample of the backwash from a pool filter is ideal because it increases the chances of detecting the parasite if it was present during the previous filter run.
Cryptosporidium (or “Crypto”) is a chlorine resistant parasite, so even well-maintained pools, water parks, and interactive fountains can spread Crypto among swimmers. If an outbreak of Crypto infections occurs in your community, the health department might ask you to hyperchlorinate.
Cryptosporidiosis is a gastrointestinal illness, caused by the parasite, Cryptosporidium. This disease is a common cause of diarrhea in children, especially in child care settings. The hallmark symptom of cryptosporidiosis is watery diarrhea, which might be accompanied by stomach ache, nausea and vomiting, fever, and a general sick feeling.