Detection of HEV RNA genotypes in amounts and Raw Milks Obtained from Different Animals

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dc.contributor.authorDemirci, Mehmet
dc.contributor.authorYigin, Akin
dc.contributor.authorUnlu, Ozge
dc.contributor.authorKilic Altun, Serap
dc.date.accessioned2024-03-13T10:33:28Z
dc.date.available2024-03-13T10:33:28Z
dc.date.issued2019
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractHepatitis E virus (HEV) is one of the major foodborne viral pathogens transmitted through the fecal-oral route. Four genotypes of HEV are known to infect humans and it is reported that different types of HEV are active in zoonotic transitions. It is known that the HEV genotype 1 and HEV genotype 2 infections are generally acute and the HEV genotype 3 infections are chronic. Therefore, in the studies related to HEV infections, it is important to determine the genotypes to monitortreatment regimens. Although raw milk is often used in communities due to its low cost, there are limited data on the rates and the genotypes of HEV in our country and in the world. In light of this information, we aimed to investigate epidemiologically the quantity and genotypes of HEV RNA in 231 raw milk (48 cow milk, 65 goat milk, 65 sheep milk, and 53 donkey milk) samples. Viral RNAs were isolated from raw milk samples and the ORF2 region of HEV was investigated by the qRt-PCR method to determine quantitatively the presence of HEV RNA. In addition, among HEV RNA positive samples, the ORF2 region of HEV was amplified by nested PCR and the amplicons were sequenced. HEV RNA was detected in 47 (20.34%) raw milk samples, Positivity was detected in 14 (29.16%) of cow milk, 12 (18.46%) of goat milk, 8 of sheep milk (12.3) and 13 of donkey milk (24.5%). The amount of HEV RNA in cow milk found as the highest in both proportion and quantity. When the distribution of the HEV genotypes in the 47 positive samples was examined, 27 (57.44%) HEV genotype 1a, 10 (21.27%) HEV genotype 1 b, 4 (8.5%) HEV genotype 4c, 2 (4.2%) HEV genotype 3a, (2.13) HEV genotype lc, 1 (2.13%) HEV genotype 3e, 1 (2.13%) HEV genotype 3f and 1 (2.13%) HEV genotype 3g were determined. Although genotype la is more frequent, it has been revealed that different genotypes encountered in our country. In conclusion, it has been determined that HEV, one of the major foodborne viral agents, may be encountered in raw milk, and the genotypes that can cause infections in human are found especially in raw milk from animal sources. For the prevention of foodborne outbreaks, the presence of HEV in raw milk should not be ignored.en_US
dc.identifier.doi10.5578/mb.67468
dc.identifier.endpage52en_US
dc.identifier.issn0374-9096
dc.identifier.issue1en_US
dc.identifier.pmid30683038en_US
dc.identifier.scopus2-s2.0-85060525413en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.startpage43en_US
dc.identifier.urihttps://doi.org/10.5578/mb.67468
dc.identifier.urihttps://hdl.handle.net/20.500.12662/3956
dc.identifier.volume53en_US
dc.identifier.wosWOS:000459548000005en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isotren_US
dc.publisherAnkara Microbiology Socen_US
dc.relation.ispartofMikrobiyoloji Bultenien_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHepatitis E virusen_US
dc.subjectHEV genotypesen_US
dc.subjectraw milken_US
dc.titleDetection of HEV RNA genotypes in amounts and Raw Milks Obtained from Different Animalsen_US
dc.typeArticleen_US

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