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A major causative agent of gastrointestinal disease is Cryptosporidium, a protozoan waterborne parasite identified in over 70 countries. Cryptosporidium is a cause of high disease morbidity in children and the immunocompromised with limited treatment options for patients at risk of severe illness. The hardy nature of the organism leads to its persistence in various water sources, with certain water treatment procedures proving inefficient for its complete removal. While diagnostic methods for Cryptosporidium are well-defined in the clinical sphere, detection of Cryptosporidium in water sources remains suboptimal due to low dispersion of organisms in large sample volumes, lengthy processing times and high costs of equipment and reagents. A need for improvement exists to identify the organism as an emerging threat in domestic water systems, and the technological advantages that biosensors offer over current analytical methods may provide a preventative approach to outbreaks of Cryptosporidium. Biosensors are innovative, versatile and adaptable analytical tools that could provide highly sensitive, rapid, on-site analysis needed for Cryptosporidium detection in low-resource settings.<\/jats:p>","DOI":"10.2166\/wst.2023.229","type":"journal-article","created":{"date-parts":[[2023,7,21]],"date-time":"2023-07-21T13:22:38Z","timestamp":1689945758000},"page":"615-630","update-policy":"https:\/\/doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":3,"title":["Biosensors as early warning detection systems for waterborne <i>Cryptosporidium<\/i>"],"prefix":"10.2166","volume":"88","author":[{"given":"Andrea M.","family":"Siwak","sequence":"first","affiliation":[{"name":"a Department of Medical Biosciences, University of the Western Cape, Robert Sobukwe Rd, Bellville, Cape Town, South Africa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8878-2670","authenticated-orcid":false,"given":"Priscilla 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