Serosurvey of Aujeszky’s disease virus infection in European wild boar in Spain

Vicente, Joaquı́n; Ruiz‐Fons, Francisco; Vidal, Dolors; Höfle, Úrsula; Acevedo, Pelayo; Villanúa, Diego; Fernández-de-Mera, Isabel G.; Martín, Ma Paz; Gortázar, Christian

doi:10.1136/vr.156.13.408

Cited by 64 publications

(71 citation statements)

References 16 publications

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“…This causes serious concerns regarding disease control, since different local populations are well above the threshold that allows infectious diseases to be maintained without introductions from other wild or domestic sources. This may explain, for example, the high seroprevalence of ADV in central and southern Spanish wild boar populations [7], and the fact that TB has been circulating among wild ungulates in fenced estates for over 20 years without any contact with domestic livestock [8].…”

Section: Discussionmentioning

confidence: 99%

“…The seroprevalence of ADV has also been previously described for our study area [7]. In contrast to PCV2, ADV remains infectious within the host for life, and transmission can also occur venereally or via the consumption of carcasses or hunting remains [37].…”

Section: Disease Prevalencesmentioning

confidence: 99%

“…In Spain, the wild boar is suspected of playing a role in the epidemiology of other viral agents such as Aujeszky's disease virus (ADV) [7], and of bacteria such as the Mycobacterium tuberculosis complex (MTBC) [8], among other relevant disease agents. It has been repeatedly suggested that the prevalence of such diseases could be related to farmlike management schemes, causing overabundance and increasing aggregation, for example at waterholes or feeding sites [9].…”

Section: Introductionmentioning

confidence: 99%

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Estimation of European wild boar relative abundance and aggregation: a novel method in epidemiological risk assessment

et al. 2006

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SUMMARYWild boars are important disease reservoirs. It is well known that abundance estimates are needed in wildlife epidemiology, but the expense and effort required to obtain them is prohibitive. We evaluated a simple method based on the frequency of faecal droppings found on transects (FBII), and developed a spatial aggregation index, based on the runs test statistic. Estimates were compared with hunting data, and with porcine circovirus and Aujeszky's disease virus seroprevalences and Mycobacterium tuberculosis complex and Metastrongylus spp. prevalence. The FBII and the aggregation index were correlated with the hunting index, but both of the former estimates correlated better than the latter with the disease prevalences. Hence, at least in habitats with high wild boar densities, the FBII combined with the aggregation index constitutes a cheap and reliable alternative for wild boar abundance estimation that can be used for epidemiological risk assessment, even outside the hunting season and in areas with no available data on hunting activities.

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Section: Discussionmentioning

confidence: 99%

Section: Disease Prevalencesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Estimation of European wild boar relative abundance and aggregation: a novel method in epidemiological risk assessment

et al. 2006

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“…Simultaneously, over the last few decades an increase of the wild boar population, acting as possible PrV transmitters, has been recorded in most European countries. Serological surveys and virological screenings have shown that in many regions of Europe the prevalence of PrV in populations of wild boar is higher than expected (Vicente et al, 2005;Müller et al, 2011;Wodak, 2011;Boadella et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Characterisation of pseudorabies virus in domestic pigs and wild boars in Croatia

Keros

Brnić

Prpić

et al. 2014

Acta Veterinaria Hungarica

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Serological data imply that pseudorabies (Aujeszky's disease) is present in domestic pigs and wild boars in Croatia. Therefore, this study included testing of brain tissue samples collected from 200 domestic pigs and 105 wild boars originating from seventeen districts of Croatia. The presence of pseudorabies virus (PrV) DNA was confirmed in samples originating from six domestic pigs (3%) and one wild boar (0.95%). Positive samples were sequenced and analysed on the basis of a gC genome fragment. PrV strains have shown to be genetically identical and they are strongly related to some representative strains in the relatively heterogeneous Clade A. The results clearly show that PrV is still circulating among the domestic pig population in Croatia. Furthermore, the presence of pseudorabies virus in wild boars underlines the importance of this species as a PrV reservoir. Continued surveillance is necessary to track the viral spread in order to achieve final eradication of the disease.

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“…These changes in wildlife management have already raised concerns regarding the control of infectious and parasitic diseases [11,38,39]. In this context, our aims were the following: (a) to assess the occurrence and prevalence of TB-like lesions (TBL) through a nationwide survey of red deer and wild boar, and through an exploratory analysis, (b) to describe epidemiological patterns and (c) to investigate the relationships between the presence of TBL in both species.…”

Section: Introductionmentioning

confidence: 99%

Wild boar and red deer display high prevalences of tuberculosis-like lesions in Spain

et al. 2006

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-We describe the distribution of tuberculosis-like lesions (TBL) in wild boar (Sus scrofa)and red deer (Cervus elaphus) in Spain. Animals with TBL were confirmed in 84.21% of mixed populations (n = 57) of red deer and wild boar and in 75% of populations of wild boar alone (n = 8) in central and southern Spain (core area). The prevalence of TBL declined towards the periphery of this region. In the core area, the prevalence ranged up to 100% in local populations of wild boar (mean estate prevalence 42.51%) and up to 50% in red deer (mean estate prevalence 13.70%). We carried out exploratory statistical analyses to describe the epidemiology of TBL in both species throughout the core area. Prevalence of TBL increased with age in both species. Wild boar and red deer mean TBL prevalence at the estate level were positively associated, and lesion scores were consistently higher in wild boars than in red deer. The wild boar prevalence of TBL in wild boar did not differ between populations that were or were not cohabiting with red deer. Amongst the wild boars with TBL, 61.19% presented generalized lesions, and the proportion of generalized cases was similar between sex and age classes. In red deer, 57.14% of TBL-positive individuals presented generalized lesions, and the percentage of generalized cases increased with age class, but did not differ between the sexes. These results highlight the potential importance of wild boar and red deer in the maintenance of tuberculosis in south central Spain.Mycobacterium tuberculosis complex / tuberculosis-like lesions / red deer / Spain / wild boar

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Serosurvey of Aujeszky’s disease virus infection in European wild boar in Spain

Cited by 64 publications

References 16 publications

Estimation of European wild boar relative abundance and aggregation: a novel method in epidemiological risk assessment

Estimation of European wild boar relative abundance and aggregation: a novel method in epidemiological risk assessment

Characterisation of pseudorabies virus in domestic pigs and wild boars in Croatia

Wild boar and red deer display high prevalences of tuberculosis-like lesions in Spain

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