Field samplings of Ixodes ricinus ticks from a tick-borne encephalitis virus micro-focus in Northern Zealand, Denmark

In 2008–2009 a tick-borne encephalitis virus (TBEV) micro-focus was detected in Northern Zealand, Denmark. No new cases of TBE with an epidemiological link to Northern Zealand has been reported since. Here we undertook to investigate Ixodes ricinus ticks from this endemic micro-focus in 2016 and 201...

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Bibliographic Details
Published in:Ticks and tick-borne diseases 2019-08, Vol.10 (5), p.1028-1032
Main Authors: Petersen, Andreas, Rosenstierne, Maiken Worsøe, Rasmussen, Morten, Fuursted, Kurt, Nielsen, Henrik Vedel, O’Brien Andersen, Lee, Bødker, René, Fomsgaard, Anders
Format: Article
Language:English
Subjects:
Bacteria
Ixodes ricinus
Micro-focus
Tick-borne encephalitis virus
Uukuniemi virus
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Summary:In 2008–2009 a tick-borne encephalitis virus (TBEV) micro-focus was detected in Northern Zealand, Denmark. No new cases of TBE with an epidemiological link to Northern Zealand has been reported since. Here we undertook to investigate Ixodes ricinus ticks from this endemic micro-focus in 2016 and 2017. In addition to TBEV, I. ricinus ticks may host other pathogens that include Borrelia spp., Babesia spp., Rickettsia spp. and Neoehrlichia mikurensis, together with various endosymbiont microorganisms. To detect multiple organisms we used a metagenomics PanVirus microarray and next-generation sequencing to examine the persistence and evolution of other emerging viruses, bacteria and parasites. Here we report the rise and fall of the Danish TBEV micro-focus in Northern Zealand. However, we identify for the first time in Danish I. ricinus ticks the presence of Uukuniemi virus in addition to a tick-borne phlebovirus and a range of bacteria.
ISSN:1877-959X
1877-9603
DOI:10.1016/j.ttbdis.2019.05.005