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dc.contributor.authorTipu, Jahid Hasan
dc.contributor.authorSivertsen, Audun
dc.contributor.authorAfset, Jan Egil
dc.contributor.authorSandven, Lars
dc.contributor.authorBrekke, Hanne
dc.contributor.authorLund, Hilde Marie
dc.contributor.authorElburg, Linnea Sofie
dc.contributor.authorGaustad, Peter
dc.contributor.authorLier, Tore
dc.contributor.authorTverelv, Liv Reidun
dc.contributor.authorJohansen, Øystein Haarklau
dc.contributor.authorRobertson, Lucy
dc.contributor.authorHanevik, Kurt
dc.date.accessioned2024-12-04T09:18:53Z
dc.date.available2024-12-04T09:18:53Z
dc.date.created2024-10-24T12:42:28Z
dc.date.issued2024
dc.identifier.citationEmerging microbes & infections. 2024, 13 (1), .en_US
dc.identifier.issn2222-1751
dc.identifier.urihttps://hdl.handle.net/11250/3168078
dc.description.abstractPCR-based diagnostics has revealed the previously largely unknown Cryptosporidium transmission and infections in high-income countries. This study aimed to determine domestic and imported subtypes of Cryptosporidium species in Norway, evaluate their demographic distribution, and identify potential small outbreaks. Cryptosporidium-positive human faecal samples were obtained from six medical microbiology laboratories between February 2022 and January 2024, together with 22 Cryptosporidium-positive animal samples. Species and subtypes were identified by sequencing PCR products from gp60 and SSU rRNA genes. Most cryptosporidiosis cases occurred during late summer/early autumn, primarily in children and young adults. Of 550 human samples, 359 were successfully characterized molecularly (65%), revealing infection with 10 different Cryptosporidium species. C. parvum occurred in 245 (68%) human isolates with IIa and IId being major allele families, with distinct regional distribution patterns of common subtypes. A kindergarten outbreak with 5 cases was due to C. parvum IIaA14G1R1. C. mortiferum was identified in 33 (9.2%) human cases of which 24 were known to be of domestic origin, making it the second most common species in human autochthonous cases in Norway. All C. mortiferum isolates were of the same genotype; XIVaA20G2T1, including 13 cases from a suspected small outbreak in Trøndelag. C. hominis occurred in 68 typed cases (19%), but mostly in infections acquired abroad, with allele families Ib and If occurring most often. In conclusion, this study of recent Cryptosporidium spp. and subtypes in Norway, highlights the predominance of C. parvum and the emergence of C. mortiferum among autochthonous cases.en_US
dc.language.isoengen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleCryptosporidium species and subtypes in Norway: predominance of C. parvum and emergence of C. mortiferumen_US
dc.title.alternativeCryptosporidium species and subtypes in Norway: predominance of C. parvum and emergence of C. mortiferumen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.doi10.1080/22221751.2024.2412624
dc.identifier.cristin2314381
dc.source.journalEmerging microbes & infectionsen_US
dc.source.volume13en_US
dc.source.issue1en_US
dc.source.pagenumber0en_US


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal