Cryptosporidium in small water systems in Puerto Rico: a pilot study
Guy Robinson1, Harvey A Minnigh2, Paul R Hunter3
1Cryptosporidium Reference Unit, Public Health Wales Microbiology, Singleton Hospital, Swansea, SA2 8QA, UK.
Journal of Water and Health
|September 1, 2015
Summary
Cryptosporidium oocysts were found in all four small drinking water systems in rural Puerto Rico. This indicates a potential public health risk from this chlorine-resistant pathogen in these communities.
Area of Science:
- Environmental Science
- Public Health
- Microbiology
Background:
- Small drinking water systems in rural Puerto Rico often lack robust monitoring.
- Cryptosporidium is a waterborne protozoan parasite known for chlorine resistance.
- Assessing pathogen presence in these systems is crucial for community health.
Purpose of the Study:
- To investigate the occurrence of Cryptosporidium in very small drinking water systems in rural Puerto Rico.
- To identify potential public health risks associated with this pathogen in underserved communities.
Main Methods:
- Collected 40 L water samples from four rural Puerto Rican drinking water systems.
- Concentrated oocysts using calcium carbonate flocculation.
- Recovered oocysts via immunomagnetic separation and detected using immunofluorescence microscopy.
Main Results:
- Cryptosporidium oocysts were detected in all four water systems studied.
- This is the first report of Cryptosporidium in small water systems in Puerto Rico.
- Identified a potential public health risk due to this chlorine-resistant pathogen.
Conclusions:
- The presence of Cryptosporidium in all tested systems highlights a significant public health concern.
- Further research is needed to evaluate the risks posed by Cryptosporidium and other protozoa.
- Community-managed small drinking water systems require enhanced monitoring and risk assessment.
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