Investigation of wild boar (Sus scrofa) for porcine reproductive and respiratory syndrome in some territories of Russia

Кукушкин, С. А.; Kan'shina, A V; Тимина, А. М.; Baybikov, T.; Михалишин, В. В.

doi:10.1007/s10344-007-0159-2

Cited by 9 publications

(4 citation statements)

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“…Surveys of wild boars from eastern Slovakia have revealed that PRRSV was present in 1.6 % of samples when tested by nested RT-PCR [ 31 ], and PRRSV Type 1 was accidentally identified in a road killed wild boar in Italy [ 25 ]. Contrary to our results, Kukushkin et al [ 20 ] failed to detect PRRSV in tissue samples from wild boars in Russia using RT-PCR, while a study in Poland found that PRRSV infections were not prevalent in wild boars [ 32 ]. The sera and tissues from wild boars in south-central Spain were also found to be negative by conventional and real-time RT-PCR assays [ 18 ].…”

Section: Discussioncontrasting

confidence: 99%

“…The seroprevalence of antibodies against PRRSV in wild boars has been determined to range from 0.3 to 3.6 % in several countries [ 12 – 19 ]; however, in the Campania Region of Italy, a seroprevalence of 37.8 % was detected [ 17 ]. Many other studies have reported negative PRRSV seroprevalence results [ 20 – 24 ]. PRRSV has also been detected using reverse transcription polymerase chain reaction (RT-PCR) methods in the lung tissue of wild boars in Italy [ 25 ], Germany [ 26 ] and Lithuania [ 27 ] as well as in the lung tissue of hybrid wild boars, known as “special wild pigs” in China [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

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Detection and molecular characterization of porcine reproductive and respiratory syndrome virus in Lithuanian wild boar populations

et al. 2015

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BackgroundPorcine reproductive and respiratory syndrome virus (PRRSV) is recognized worldwide as an important and economically devastating pathogen in pig production. Although PRRSV is widespread in domestic swine, there is a lack of information regarding PRRSV infection in European wild boars (Sus scrofa). Currently available information does not provide conclusive evidence that wild boars are a reservoir of PRRSV. Nevertheless, wild boars may be likely to become infected by domestic swine through occasional direct or indirect contact. Furthermore, wild boars can act as a reservoir for infectious diseases of domestic pigs. Therefore, the objectives of the present study were to determine the virus prevalence and further explore the epidemiology and diversity of PRRSV strains present in Lithuanian wild boars over a 5-year period. A total of 1597 tissue and serum samples from wild boars inhabiting 44 districts and ten counties in Lithuania were analysed using conventional nested reverse transcription polymerase chain reaction (RT-PCR) and real-time Taqman RT-PCR for the detection of PRRSV-specific open reading frame (ORF) 1 and 6 sequences.ResultsPRRSV was highly prevalent in Lithuanian wild boar populations, with an average rate of 18.66 % using conventional RT-PCR and 19.54 % using real-time RT-PCR. PRRSV was detected in 36.71 and 41.77 % of 237 hunting grounds tested by conventional RT-nPCR and real-time RT-PCR, respectively. No statistically significant differences in PRRSV prevalence were observed by geographic area in the ten Lithuanian counties. Animals infected with PRRSV were identified in all age groups; however, significantly higher prevalence rates were identified in subadult and adult wild boars than in juveniles up to 12 months old. No positive results were obtained using conventional PCR with Type 2 specific primers. Phylogenetic analysis of the partial ORF5 region revealed that ten wild boars harboured virus sequences belonging to genetic subtypes 3 and 4 and may therefore pose a serious threat to Lithuanian pig farms in which only subtype two strains are circulating.ConclusionsThe results of virus prevalence and phylogenetic analyses strongly support the role of wild boars as a possible natural reservoir for PRRSV in Lithuania.Electronic supplementary materialThe online version of this article (doi:10.1186/s13028-016-0232-5) contains supplementary material, which is available to authorized users.

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Section: Discussioncontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Detection and molecular characterization of porcine reproductive and respiratory syndrome virus in Lithuanian wild boar populations

et al. 2015

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“…According to same authors, on PPV identification in wild boar populations, the estimated prevalence of PPV genotypes is 69.6% for PPV3, 63.8% for PPV1, and 21.7% for PPV2. There were no positive samples for PRRSV in our investigation, which aligns with the findings of Kukushkin et al [31], who also did not detect PRRSV-positive animals in wild boar populations across five regions in Russia. Considering that we utilized samples of lymph nodes, spleen, and kidney, we cannot entirely rule out the possibility of PRRS presence in the wild boar population in Serbia.…”

Section: Discussionsupporting

confidence: 92%

Molecular Detection of Porcine Cytomegalovirus, Porcine Parvovirus, Aujeszky Disease Virus and Porcine Reproductive and Respiratory Syndrome Virus in Wild Boars Hunted in Serbia during 2023

Jezdimirović,

Savić,

Milovanović

et al. 2024

Veterinary Sciences

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Porcine cytomegalovirus (PCMV) infection is widespread worldwide and has a high prevalence in swine herds, especially in countries with intensive swine production. PCMV is zoonotic and can impact xenotransplants. It is the third swine virus known to be zoonotic, following swine influenza virus (influenza A) and hepatitis E virus genotype 3 (HEVgt3 or HEV-3). Wild boars, serving as reservoirs for various pathogens, including PCMV, pose a risk to both the pig industry and public health. This study aimed to investigate PCMV infection in Serbian wild boars using real-time PCR and assess other viral infections. We also tested samples for the presence of other viral infections: Aujeszky disease virus (ADV), Porcine parvovirus (PPV) and Porcine reproductive respiratory syndrome (PRRSV). Samples from 50 wild boars across 3 districts were tested. Results showed 8% positivity for PCMV DNA, with females showing higher infection rates. Porcine parvovirus (PPV) was detected in 56% of samples, while Porcine reproductive respiratory syndrome virus (PRRSV) was absent. ADV was found in 18% of samples, primarily in younger animals. This research contributes to understanding PCMV prevalence in Serbian wild boars and emphasizes the importance of monitoring viral infections in wild populations, considering the potential zoonotic and economic implications.

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“…In the USA, no positive samples were detected in the samples collected in 1976 and in 1993, and only two positive animals were found in 1994 by Lutz and Wurm (16). No PRRSV antibodies were found in wild boars in the neighbouring Poland and Russian Federation (10,14). Blood serum investigations of boars were negative in Switzerland, Spain, Croatia and Slovenia (7,21,27,28,30).…”

Section: Discussionmentioning

confidence: 99%

Five Years Seroprevalence Study of Porcine Reproductive and Respiratory Syndrome Virus in Lithuanian Pig and Wild Boar Populations

Stankevičius

Buitkuvienė

Deltuvytienė

et al. 2014

Bulletin of the Veterinary Institute in Pulawy

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Serological study of porcine reproductive and respiratory syndrome virus (PRRSV) infection in pigs and wild boars was conducted in Lithuania between 2009 and 2013. Antibody level was measured using a commercial ELISA. The 4.32% (95% CI 3.92-4.72) out of 9856 examined porcine sera were positive for the PRRSV antibodies. The antibodies were detected in 11.82% (95% CI 10.28-13.36) of all investigated serum samples of sows and gilts. As much as 8.2% of serologically positive samples (95% CI 6.83-9.57) were determined in the piglets under three months of age. Considerably smaller (P < 0.05) seroprevalence was detected in boars (0.62%) and fattening pigs (1.84%). From 1357 examined sera of wild boar, collected between 2009 and 2013 hunting seasons, 5.38% (95% CI 4.52-8.2) of samples were positive for PRRSV antibodies in 23 locations out of 50 investigated. The analysis of seroprevalence in different age groups of wild boars showed that PRRSV antibodies were detected in all age groups; however, it was significantly higher in adults than in juveniles or subadults and reached up to 10.02% (95% CI 7.39-12.65).

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Investigation of wild boar (Sus scrofa) for porcine reproductive and respiratory syndrome in some territories of Russia

Cited by 9 publications

References 16 publications

Detection and molecular characterization of porcine reproductive and respiratory syndrome virus in Lithuanian wild boar populations

Detection and molecular characterization of porcine reproductive and respiratory syndrome virus in Lithuanian wild boar populations

Molecular Detection of Porcine Cytomegalovirus, Porcine Parvovirus, Aujeszky Disease Virus and Porcine Reproductive and Respiratory Syndrome Virus in Wild Boars Hunted in Serbia during 2023

Five Years Seroprevalence Study of Porcine Reproductive and Respiratory Syndrome Virus in Lithuanian Pig and Wild Boar Populations

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