{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/102964"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/102964","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Environmental fate and persistence of cyclospora cayetanensis","abstract":"Made available in DSpace on 2019-02-08T18:44:46Z (GMT). No. of bitstreams: 3 ONSTAD-THESIS-2018.pdf: 1970738 bytes, checksum: f1ef53075cde9d30780afc7b5b10effb (MD5) Onstad_TSM_MS.docx: 6390873 bytes, checksum: 5e1ee694d8ea7fb111613ecb4625e8f4 (MD5) LICENSE.txt: 4208 bytes, checksum: 98a036971c03df6cd05792b699e64f57 (MD5) Previous issue date: 2018-12-14","abstract_html":"Made available in DSpace on 2019-02-08T18:44:46Z (GMT). No. of bitstreams: 3 ONSTAD-THESIS-2018.pdf: 1970738 bytes, checksum: f1ef53075cde9d30780afc7b5b10effb (MD5) Onstad_TSM_MS.docx: 6390873 bytes, checksum: 5e1ee694d8ea7fb111613ecb4625e8f4 (MD5) LICENSE.txt: 4208 bytes, checksum: 98a036971c03df6cd05792b699e64f57 (MD5) Previous issue date: 2018-12-14","abstract_has_math":false,"creators":["Onstad, Nora Hazel"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Technical Systems Management","degree_department":null,"school":null,"contributors":["Davidson, Paul C.","Green, Michelle L.","Witola, William H."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-02-08T18:44:46Z","date_published":"2019-02-08T18:44:46Z","updated_at":"2026-07-22T22:24:42Z","subjects":["Cyclospora","C. cayetanensis","soil adsorption","cyclosporiasis","emerging disease","environmental fate","pathogen transport","PCR"],"languages":["en"],"rights":["Copyright 2018 Nora Onstad"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/102964","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Davidson, Paul C.","Green, Michelle L.","Witola, William H."]},{"key":"dc:creator","label":"Author","values":["Onstad, Nora Hazel"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2019-02-08T18:44:46Z","2021-02-09T10:15:30Z","2018-12-14","2018-12"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Technical Systems Management"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Cyclospora","C. cayetanensis","soil adsorption","cyclosporiasis","emerging disease","environmental fate","pathogen transport","PCR"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2018 Nora Onstad"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/102964"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Made available in DSpace on 2019-02-08T18:44:46Z (GMT). No. of bitstreams: 3 ONSTAD-THESIS-2018.pdf: 1970738 bytes, checksum: f1ef53075cde9d30780afc7b5b10effb (MD5) Onstad_TSM_MS.docx: 6390873 bytes, checksum: 5e1ee694d8ea7fb111613ecb4625e8f4 (MD5) LICENSE.txt: 4208 bytes, checksum: 98a036971c03df6cd05792b699e64f57 (MD5) Previous issue date: 2018-12-14","Embargo set by: Seth Robbins for item 109992 Lift date: 2021-02-08T18:44:50Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Limited Restriction Lifted for Item 109992 on 2021-02-09T10:15:30Z.","Cyclospora cayetanensis is an emerging food-borne protozoan pathogen. Similar to other gastrointestinal pathogens, cyclosporiasis causes prolonged diarrhea. Unlike Cryptosporidium, Cyclospora oocysts are not infective when they are shed by infected individuals. Oocysts mature in the environment for several weeks before sporulating. Little is known about how C. cayetanensis is transported in the environment. The literature indicates that water and food, such as leafy greens and berries, are common sources of infection. Contact with soil has also been correlated with cyclosporiasis infection. In addition to acting as a vector to transport oocysts from the environment to the body, water and soil may be important reservoirs to not only allow C. cayetanensis to persist, but also transport the oocysts from one location to another. This research utilizes discrete sampling from an urban area where human waste entered the environment. Nested PCR and two rounds of non-nested PCR analyses identified possible Cyclospora DNA in the soil, water, and wildlife scat found in the area following Combined Sewage Outfall (CSO) events. This may indicate that C. cayetanensis is prevalent in the environment. In addition, an experimental investigation of oocyst adhesion to soil was completed, but was inconclusive.","Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-12-01","The student, Nora Onstad, accepted the attached license on 2018-12-12 at 19:47.","The student, Nora Onstad, submitted this Thesis for approval on 2018-12-12 at 20:00.","This Thesis was approved for publication on 2018-12-14 at 11:10.","DSpace SAF Submission Ingestion Package generated from Vireo submission #13310 on 2019-02-08 at 11:42:21"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Environmental fate and persistence of cyclospora cayetanensis"]}]}],"canonical_facts":{"dc:contributor":["Davidson, Paul C.","Green, Michelle L.","Witola, William H."],"dc:creator":["Onstad, Nora Hazel"],"dc:date":["2019-02-08T18:44:46Z","2021-02-09T10:15:30Z","2018-12-14","2018-12"],"dc:description":["Made available in DSpace on 2019-02-08T18:44:46Z (GMT). No. of bitstreams: 3 ONSTAD-THESIS-2018.pdf: 1970738 bytes, checksum: f1ef53075cde9d30780afc7b5b10effb (MD5) Onstad_TSM_MS.docx: 6390873 bytes, checksum: 5e1ee694d8ea7fb111613ecb4625e8f4 (MD5) LICENSE.txt: 4208 bytes, checksum: 98a036971c03df6cd05792b699e64f57 (MD5) Previous issue date: 2018-12-14","Embargo set by: Seth Robbins for item 109992 Lift date: 2021-02-08T18:44:50Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Limited Restriction Lifted for Item 109992 on 2021-02-09T10:15:30Z.","Cyclospora cayetanensis is an emerging food-borne protozoan pathogen. Similar to other gastrointestinal pathogens, cyclosporiasis causes prolonged diarrhea. Unlike Cryptosporidium, Cyclospora oocysts are not infective when they are shed by infected individuals. Oocysts mature in the environment for several weeks before sporulating. Little is known about how C. cayetanensis is transported in the environment. The literature indicates that water and food, such as leafy greens and berries, are common sources of infection. Contact with soil has also been correlated with cyclosporiasis infection. In addition to acting as a vector to transport oocysts from the environment to the body, water and soil may be important reservoirs to not only allow C. cayetanensis to persist, but also transport the oocysts from one location to another. This research utilizes discrete sampling from an urban area where human waste entered the environment. Nested PCR and two rounds of non-nested PCR analyses identified possible Cyclospora DNA in the soil, water, and wildlife scat found in the area following Combined Sewage Outfall (CSO) events. This may indicate that C. cayetanensis is prevalent in the environment. In addition, an experimental investigation of oocyst adhesion to soil was completed, but was inconclusive.","Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-12-01","The student, Nora Onstad, accepted the attached license on 2018-12-12 at 19:47.","The student, Nora Onstad, submitted this Thesis for approval on 2018-12-12 at 20:00.","This Thesis was approved for publication on 2018-12-14 at 11:10.","DSpace SAF Submission Ingestion Package generated from Vireo submission #13310 on 2019-02-08 at 11:42:21"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/102964"],"dc:language":["en"],"dc:rights":["Copyright 2018 Nora Onstad"],"dc:subject":["Cyclospora","C. cayetanensis","soil adsorption","cyclosporiasis","emerging disease","environmental fate","pathogen transport","PCR"],"dc:title":["Environmental fate and persistence of cyclospora cayetanensis"],"dc:type":["text"],"thesis:degree_discipline":["Technical Systems Management"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:42Z"}