Roe deer sera used for TBE surveillance in Austria

Duscher, Georg Gerhard; Wetscher, Monika; Baumgartner, Raphaela; Walder, Gernot

doi:10.1016/j.ttbdis.2015.03.018

Cited by 24 publications

(15 citation statements)

References 24 publications

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“…This study found positive animals in known endemic areas but also helped to map new risk areas for TBE. Other recent studies in roe deer have revealed varying prevalences: in Germany, 10% (Balling et al, ), in the Netherlands, 2% (Jahfari et al, ), in Austria, 2.4% (Duscher, Wetscher, Baumgartner, & Walder, ) and in Belgium 5.1% (Tavernier et al, ). In our study, one sample (0.7%) was TBE positive.…”

Section: Discussionmentioning

confidence: 95%

Cervids as sentinel‐species for tick‐borne encephalitis virus in Norway ‐ A serological study

Paulsen

Neves

Granquist

et al. 2019

Zoonoses and Public Health

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Tick-borne encephalitis virus (TBEV) is the causative agent of tick-borne encephalitis (TBE). TBEV is one of the most important neurological pathogens transmitted by tick bites in Europe. The objectives of this study were to investigate the seroprevalence of TBE antibodies in cervids in Norway and the possible emergence of new foci, and furthermore to evaluate if cervids can function as sentinel animals for the distribution of TBEV in the country. Serum samples from 286 moose, 148 roe deer, 140 red deer and 83 reindeer from all over Norway were collected and screened for TBE immunoglobulin G (IgG) antibodies with a modified commercial enzyme-linked immunosorbent assay (ELISA) and confirmed by TBEV serum neutralisation test (SNT).The overall seroprevalence against the TBEV complex in the cervid specimens from Norway was 4.6%. The highest number of seropositive cervids was found in southeastern Norway, but seropositive cervids were also detected in southern-and central Norway. Antibodies against TBEV detected by SNT were present in 9.4% of the moose samples, 1.4% in red deer, 0.7% in roe deer, and nil in reindeer. The majority of the positive samples in our study originated from areas where human cases of TBE have been reported in Norway. The study is the first comprehensive screening of cervid species in Norway for antibodies to TBEV, and shows that cervids are useful sentinel animals to indicate TBEV occurrence, as supplement to studies in ticks. Furthermore, the results indicate that TBEV might be spreading northwards in Norway. This information may be of relevance for public health considerations and supports previous findings of TBEV in ticks in Norway. K E Y W O R D Scervids, sentinel animals, seroprevalence, tick-borne encephalitis virus | 343 PAULSEN Et AL.

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Section: Discussionmentioning

confidence: 95%

Cervids as sentinel‐species for tick‐borne encephalitis virus in Norway ‐ A serological study

Paulsen

Neves

Granquist

et al. 2019

Zoonoses and Public Health

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“…TBEV-infected areas are preferably identified through TBEV-specific antibodies in sentinel species ( 13 ). Roe deer have small home ranges, are often infested with I. ricinus ticks, seroconvert well ( 14 , 15 ), and are proven good sentinel species ( 1 , 14 , 15 ). However, if one considers serologic cross-reactivity among flaviviruses, potential foci identified need to be confirmed by other methods, such as PCRs for detecting TBEV in ticks from these sites ( 1 , 16 ).…”

Section: Discussionmentioning

confidence: 99%

Tick-Borne Encephalitis Virus Antibodies in Roe Deer, the Netherlands

Rijks,

Montizaan,

Bakker

et al. 2109

Emerg. Infect. Dis.

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“…Transmission foci are mostly restricted to small areas and the detection of these foci is limited by the numbers of ticks sampled as well as the sampling locations. For accurate determination of TBEV foci, a very small meshed sampling design is needed ( 52 ). Additionally, the virus load in ticks can be below the detection limit ( 53 ); therefore, the lack of TBEV in the ticks in this study does not confirm the absence of TBEV in the sampling area.…”

Section: Discussionmentioning

confidence: 99%

Crimean–Congo Hemorrhagic Fever Virus and Borrelia burgdorferi sensu lato in Ticks from Kosovo and Albania

et al. 2018

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Tick-borne diseases pose a serious threat to human health in South-Eastern Europe, including Kosovo. While Crimean–Congo hemorrhagic fever (CCHF) is a well-known emerging infection in this area, there are no accurate data on Lyme borreliosis and tick-borne encephalitis (TBE). Therefore, we sampled and tested 795 ticks. Ixodes ricinus (n = 218), Dermacentor marginatus (n = 98), and Haemaphysalis spp. (n = 24) were collected from the environment by flagging (all from Kosovo), while Hyalomma marginatum (n = 199 from Kosovo, all from Kosovo) and Rhipicephalus bursa (n = 130, 126 from Albania) could be collected only by removal from animal pasture and domestic ruminants. Ticks were collected in the years 2014/2015 and tested for viral RNA of CCHF and TBE viruses, as well as for DNA of Borrelia burgdorferi sensu lato by real-time PCR. In Kosovo, nine ticks were positive for RNA of Crimean–Congo hemorrhagic fever virus and seven for DNA of B. burgdorferi s. l. None of the ticks tested positive for TBEV. CCHF virus was detected in one H. marginatum male specimen collected while feeding on grazing cattle from the Prizren region and in eight R. bursa specimens (five females and three males collected while feeding on grazing sheep and cattle) from the Prishtina region (Kosovo). B. burgdorferi s. l. was detected in seven questing ticks (four male and one female D. marginatus, two I. ricinus one female and one male) from the Mitrovica region (Kosovo). Our study confirmed that CCHF virus is circulating in Kosovo mainly in H. marginatum and R. bursa in the central areas of the country. B. burgdorferi s. l. was found in its major European host tick, I. ricinus, but also in D. marginatus, in the north of the Kosovo. In order to prevent the spread of these diseases and better control of the tick-borne infections, an improved vector surveillance and testing of ticks for the presence of pathogens needs to be established.

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Roe deer sera used for TBE surveillance in Austria

Cited by 24 publications

References 24 publications

Cervids as sentinel‐species for tick‐borne encephalitis virus in Norway ‐ A serological study

Cervids as sentinel‐species for tick‐borne encephalitis virus in Norway ‐ A serological study

Tick-Borne Encephalitis Virus Antibodies in Roe Deer, the Netherlands

Crimean–Congo Hemorrhagic Fever Virus and Borrelia burgdorferi sensu lato in Ticks from Kosovo and Albania

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