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Detection of antibodies against Schmallenberg virus in wild boars, Belgium, 2010-2012
Desmecht, Daniel; Garigliany, Mutien-Marie; Beer, Martin et al.
2013In Lecoq, Yves (Ed.) 31th Congress of the International Union of Game Biologists
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Keywords :
Schmallenberg; Emergence; wild boar
Abstract :
[en] In the summer/fall of 2011, a nonspecific febrile syndrome characterized by hyperthermia and drop in milk production with occasional reports of watery diarrhea and abortion was reported among dairy cows on farms in northwestern Europe. Further, in November 2011, an enzootic outbreak of malformed neonates emerged in several European countries, with stillbirth and birth at term of lambs, kids and calves with neurological signs or malformations of the head, spine, or limbs. Both syndromes were associated with the presence in the blood (adults) or in the central nervous system (newborns) of a new Shamonda/Sathuperi-like orthobunyavirus, provisionally named Schmallenberg virus (SBV) after the town in Germany where the first positive clinical samples were identified. Defining as precisely as possible the host range of the newcomer is a key point to predict the outcome of the emergence of SBV disease in Europe. In this respect, it must be pointed out that orthobunyaviruses infect more animal species than those in which the foetus is damaged. Recently, serological evidence for SBV infection in wild ruminant species (Cervus elaphus and Capreolus capreolus) was reported (Linden et al., 2012). In the present study, the objective was to seek after serological evidence of SBV infection among wild boars living in a geographical area where exposure to infected insect vectors was high in 2011, as judged from the very high seroprevalence reported among cattle in that region. About 700 animals were sampled during the 2010-2012 hunting seasons. All serum samples collected during the fall of 2010 were seronegative. On the contrary, apparent seroprevalence among wild boars in 2011 was ~27% and started to decline in 2012 (~11%). Acquired immunity against the new virus was thus already very high in the wild boar populations sampled in the fall 2011, suggesting that the new virus had quickly spread throughout the region since its emergence about 250 km northeast in the late summer 2011. The drop in seroprevalence recorded in 2012 suggests that the virus was no more circulating in the region.
Disciplines :
Microbiology
Author, co-author :
Desmecht, Daniel ;  Université de Liège - ULiège > Département de morphologie et pathologie > Pathologie spéciale et autopsies
Garigliany, Mutien-Marie  ;  Université de Liège - ULiège > Département de morphologie et pathologie > Pathologie spéciale et autopsies
Beer, Martin
Schirrmeier, Horst
Paternostre, Julien ;  Université de Liège - ULiège > Département des maladies infectieuses et parasitaires > Santé et pathologies de la faune sauvage
Volpe, Rosario ;  Université de Liège - ULiège > Département des maladies infectieuses et parasitaires > Département des maladies infectieuses et parasitaires
Linden, Annick  ;  Université de Liège - ULiège > Département des maladies infectieuses et parasitaires > Santé et pathologies de la faune sauvage
Language :
English
Title :
Detection of antibodies against Schmallenberg virus in wild boars, Belgium, 2010-2012
Publication date :
27 August 2013
Event name :
31th Congress of the International Union of Game Biologists
Event organizer :
International Union of Game Biologists (IUGB)
Event place :
Brussels, Belgium
Event date :
27, 28 et 29 August, 2013
Audience :
International
Main work title :
31th Congress of the International Union of Game Biologists
Publishing director :
Lecoq, Yves
Pages :
O.TL.24
Peer reviewed :
Peer reviewed
Funders :
ULiège - Université de Liège [BE]
Available on ORBi :
since 28 August 2013

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