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Detektion med realtids-PCR av Rickettsia spp. i Ixodes ricinus fästingar insamlade i Nordnorge
Jönköping University, School of Health and Welfare, HHJ, Dep. of Natural Science and Biomedicine.
Jönköping University, School of Health and Welfare, HHJ, Dep. of Natural Science and Biomedicine.
2018 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Detection of Rickettsia spp. in Ixodes ricinus ticks collected in Northern of Norway, using real-time PCR (English)
Abstract [sv]

Fästingburna infektioner har blivit ett växande problem på norra halvklotet. I Europa är fästingarten Ixodes ricinus vanligast förekommande. Fästingen agerar vektor för många mikroorganismer, inklusive Rickettsia spp, som kan orsaka rickettsioser hos djur och människor. Syftet med studien var att med realtids-PCR undersöka förekomsten av Rickettsia spp i I. ricinus fästingar insamlade på Brønnøy och i Nordnorge. Totalt analyserades 557 fästingar för förekomst av Rickettsia spp. 7 av de 557 fästingarna (1,3%) var positiva för Rickettsia spp och en signifikant skillnad mellan utvecklingsstadier uppvisades. Studien är den första som har påvisat förekomst av Rickettsia spp i I. ricinus fästingar i Nordnorge. Den patogena spridningen kommer förmodligen att expandera till nya nordligt belägna områden. Studiens resultat skulle kunna vara en utgångspunkt för vidare studier om bakteriens spridning och den potentiella risken för överföring till djur och människor. Allmänheten bör uppmärksammas om möjliga infektionsrisker.

Abstract [en]

Tick-borne infections have become a growing problem in the Northern hemisphere. In Europe Ixodes ricinus is the most abundant tick species. The tick acts as vector for many microorganisms including Rickettsia spp. which can cause rickettsiosis in humans and animals. The purpose of the study was to examine the prevalence of Rickettsia spp. in I. ricinus collected at Brønnøy and in the Northern Norway, using real-time PCR. A total of 557 I. ricinus ticks were analyzed for the presence of Rickettsia spp. Seven out of the 557 ticks (1.3%) were positive for Rickettsia spp. and a significant difference between developmental stages was detected.  The study is the first to investigate the presence of Rickettsia spp. in I. ricinus ticks in Northern of Norway. The pathogenic distribution is most likely to expand to new northern areas. The results of the study could be used as a starting-point for further studies of the bacterial spread and the potential risk of transmission to humans and animals. The public should be informed of possible infection risks.

Place, publisher, year, edition, pages
2018. , p. 26
Keywords [en]
Ixodidae, Rickettsiales, TaqMan-probe, prevalence, Brønnøy.
Keywords [sv]
Ixodidae, Rickettsiales, TaqMan-probe, prevalens, Brønnøy.
National Category
Biomedical Laboratory Science/Technology
Identifiers
URN: urn:nbn:se:hj:diva-40048ISRN: JU-HHJ-BLA-1-20180064OAI: oai:DiVA.org:hj-40048DiVA, id: diva2:1215831
Subject / course
HHJ, Biomedical Laboratory Science
Supervisors
Examiners
Available from: 2018-06-21 Created: 2018-06-09 Last updated: 2018-06-21Bibliographically approved

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CiteExportLink to record
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