Rare Cryptosporidium hominis subtype associated with aquatic center use
2008

Rare Cryptosporidium hominis Subtype Associated with Aquatic Center Use

Sample size: 15 publication Evidence: moderate

Author Information

Author(s): Ong Corinne S.L., Chow Simon, Gustafson Reka, Plohman Candace, Parker Robert, Isaac-Renton Judith L., Fyfe Murray W.

Primary Institution: University of British Columbia

Hypothesis

Were the cases of cryptosporidiosis in the Tri-Cities area related to the use of a community aquatic center?

Conclusion

The study identified a new subtype of Cryptosporidium hominis linked to a disease cluster associated with an aquatic center.

Supporting Evidence

  • Fifteen laboratory-confirmed cases were identified over a 3-month period.
  • All cases were linked to a community aquatic center.
  • The gp60 sequences from all case-patients were identical and were subtype IdA19.
  • This subtype has been rarely reported globally.

Takeaway

Some people got sick after using a community pool, and scientists found a rare germ that might have made them sick.

Methodology

Molecular analysis of fecal specimens from confirmed cases was conducted to identify the Cryptosporidium subtype.

Limitations

The association between the new subtype and previous outbreaks remains uncertain.

Participant Demographics

Cases were from 5 separate households in the Tri-Cities area.

Digital Object Identifier (DOI)

10.3201/eid1408.080115

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