No evidence for African swine fever virus DNA in haematophagous arthropods collected at wild boar baiting sites in Estonia.

Autor: Herm R; Chair of Veterinary Bio- and Population Medicine, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia., Kirik H; Chair of Biodiversity and Nature Tourism, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia., Vilem A; Veterinary and Food Laboratory, Tartu, Estonia., Zani L; Federal Research Institute for Animal Health, Friedrich-Loeffler-Institute, Greifswald, Germany., Forth JH; Federal Research Institute for Animal Health, Friedrich-Loeffler-Institute, Greifswald, Germany., Müller A; Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal., Michelitsch A; Federal Research Institute for Animal Health, Friedrich-Loeffler-Institute, Greifswald, Germany., Wernike K; Federal Research Institute for Animal Health, Friedrich-Loeffler-Institute, Greifswald, Germany., Werner D; Leibniz Centre for Agricultural Landscape Research, Müncheberg, Germany., Tummeleht L; Chair of Veterinary Bio- and Population Medicine, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia., Kampen H; Federal Research Institute for Animal Health, Friedrich-Loeffler-Institute, Greifswald, Germany., Viltrop A; Chair of Veterinary Bio- and Population Medicine, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia.
Jazyk: angličtina
Zdroj: Transboundary and emerging diseases [Transbound Emerg Dis] 2021 Sep; Vol. 68 (5), pp. 2696-2702. Date of Electronic Publication: 2021 Mar 09.
DOI: 10.1111/tbed.14013
Abstrakt: African swine fever (ASF) is a highly pathogenic viral disease affecting all Suidae, with Ornithodoros moubata complex soft ticks acting as the biological arthropod vectors of the causative agent, African swine fever virus (ASFV). While ASFV is also transmissible via direct contact, pig products and fomites, other arthropods may be involved in virus transmission and persistence. Therefore, we checked various groups of blood-feeding arthropods collected during summer 2017 in wild boar habitats on the Estonian Island of Saaremaa for the presence of ASFV. Saaremaa had the highest ASF infection prevalences in Estonia in 2017, with an incidence of 9% among hunted wild boar. In addition to ASFV, we tested for other selected pathogens. In total, 784 ticks, 6,274 culicoid biting midges, 77 tabanids and 757 mosquitoes were tested as individuals or pools. No ASFV-DNA was found in any of them although about 20% of the tick samples tested positive for swine DNA. By contrast, tick-borne encephalitis virus-RNA was detected in one out of 37 tick pools (2.7%) and Borrelia burgdorferi s.l.-DNA in 20 individual ticks and 17 tick pools (25.2% of all samples). No Schmallenberg virus was detected in the Culicoides specimens. In conclusion, we found no evidence for Ixodes ricinus ticks, Culicoides punctatus and Obsoletus complex biting midges, Aedes spp., Anopheles spp. and Culiseta annulata mosquitoes, and Haematopota pluvialis tabanids playing a role in ASFV transmission in the wild boar population in Estonia.
(© 2021 Wiley-VCH GmbH.)
Databáze: MEDLINE
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