Identification of seropositive wild boars in Eurasia as a sign of possible formation of African swine fever-endemic areas (review)
The continued spread of African swine fever (ASF) in Eurasia remains a global problem for the world pig industry. The disease is characterized by high mortality (up to 100 %) and acute course - domestic and wild animals die within the first two weeks after infection. However, active surveillance on...
| Main Authors: | , |
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| Format: | Article |
| Language: | Russian |
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Federal Agricultural Research Center of the North-East named N.V. Rudnitsky
2023-08-01
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| Series: | Аграрная наука Евро-Северо-Востока |
| Subjects: | |
| Online Access: | https://www.agronauka-sv.ru/jour/article/view/1404 |
| _version_ | 1797290196882948096 |
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| author | T. Yu. Bespalova A. A. Glazunova |
| author_facet | T. Yu. Bespalova A. A. Glazunova |
| author_sort | T. Yu. Bespalova |
| collection | DOAJ |
| description | The continued spread of African swine fever (ASF) in Eurasia remains a global problem for the world pig industry. The disease is characterized by high mortality (up to 100 %) and acute course - domestic and wild animals die within the first two weeks after infection. However, active surveillance on ASF in Eastern Europe had been showing regular detection of seropositive susceptible animals, especially among wild boar populations which may indicate chronic, asymptomatic infection and even the survival of individual animals. At the same time, the persistence of the virus in the wild boar population creates constant risks of sporadic outbreaks of ASF in infected areas, and the infection can become endemic. The aim of the study was a systematic review of the available data on seroprevalence among wild boars in relation to the possible establishment of ASF endemicity in Eurasia. In these animals, there was a change in the dynamics of the disease, which is manifested by self-sustaining cycles of infection. Seropositive wild boars are being found in the Baltic countries, Hungary, Poland, Romania, Slovakia, and Russia. Seroprevalence rates among wild boars hunted in ASF-infected areas of European countries range from 0.3 to 3.8 %. In the Baltic countries, the number of seropositive samples from wild boars exceeds the number of samples positive for ASF virus in polymer chain reaction (PCR). A similar trend persists in those regions where the ASF virus has been present for a long time (Poland, Lithuania, Latvia, Estonia), which may indicate the endemic nature of ASF. In the Russian Federation, ASF-endemic territories in the wild have not yet been registered, although isolated cases of seropositive wild boars have been detected in some regions since 2013. In the future, in order to understand the dynamics of the disease in the wild, it is necessary to conduct a comprehensive diagnosis of the ASF virus genome and antibodies in wild boar samples, which eventually will allow choosing the right strategy to combat ASF. |
| first_indexed | 2024-03-07T19:18:56Z |
| format | Article |
| id | doaj.art-67f3472dc6e341c0a475b891aaacaca8 |
| institution | Directory Open Access Journal |
| issn | 2072-9081 2500-1396 |
| language | Russian |
| last_indexed | 2024-03-07T19:18:56Z |
| publishDate | 2023-08-01 |
| publisher | Federal Agricultural Research Center of the North-East named N.V. Rudnitsky |
| record_format | Article |
| series | Аграрная наука Евро-Северо-Востока |
| spelling | doaj.art-67f3472dc6e341c0a475b891aaacaca82024-02-29T11:31:14ZrusFederal Agricultural Research Center of the North-East named N.V. RudnitskyАграрная наука Евро-Северо-Востока2072-90812500-13962023-08-0124452753710.30766/2072-9081.2023.24.4.527-537681Identification of seropositive wild boars in Eurasia as a sign of possible formation of African swine fever-endemic areas (review)T. Yu. Bespalova0A. A. Glazunova1Federal Research Center for Virology and Microbiology, Samara Research Veterinary Institute – Branch of Federal Research Center for Virology and MicrobiologyFederal Research Center for Virology and Microbiology, Samara Research Veterinary Institute – Branch of Federal Research Center for Virology and MicrobiologyThe continued spread of African swine fever (ASF) in Eurasia remains a global problem for the world pig industry. The disease is characterized by high mortality (up to 100 %) and acute course - domestic and wild animals die within the first two weeks after infection. However, active surveillance on ASF in Eastern Europe had been showing regular detection of seropositive susceptible animals, especially among wild boar populations which may indicate chronic, asymptomatic infection and even the survival of individual animals. At the same time, the persistence of the virus in the wild boar population creates constant risks of sporadic outbreaks of ASF in infected areas, and the infection can become endemic. The aim of the study was a systematic review of the available data on seroprevalence among wild boars in relation to the possible establishment of ASF endemicity in Eurasia. In these animals, there was a change in the dynamics of the disease, which is manifested by self-sustaining cycles of infection. Seropositive wild boars are being found in the Baltic countries, Hungary, Poland, Romania, Slovakia, and Russia. Seroprevalence rates among wild boars hunted in ASF-infected areas of European countries range from 0.3 to 3.8 %. In the Baltic countries, the number of seropositive samples from wild boars exceeds the number of samples positive for ASF virus in polymer chain reaction (PCR). A similar trend persists in those regions where the ASF virus has been present for a long time (Poland, Lithuania, Latvia, Estonia), which may indicate the endemic nature of ASF. In the Russian Federation, ASF-endemic territories in the wild have not yet been registered, although isolated cases of seropositive wild boars have been detected in some regions since 2013. In the future, in order to understand the dynamics of the disease in the wild, it is necessary to conduct a comprehensive diagnosis of the ASF virus genome and antibodies in wild boar samples, which eventually will allow choosing the right strategy to combat ASF.https://www.agronauka-sv.ru/jour/article/view/1404asf virusantibodiesseroprevalencechronicpersistentsurvivorvirulence |
| spellingShingle | T. Yu. Bespalova A. A. Glazunova Identification of seropositive wild boars in Eurasia as a sign of possible formation of African swine fever-endemic areas (review) Аграрная наука Евро-Северо-Востока asf virus antibodies seroprevalence chronic persistent survivor virulence |
| title | Identification of seropositive wild boars in Eurasia as a sign of possible formation of African swine fever-endemic areas (review) |
| title_full | Identification of seropositive wild boars in Eurasia as a sign of possible formation of African swine fever-endemic areas (review) |
| title_fullStr | Identification of seropositive wild boars in Eurasia as a sign of possible formation of African swine fever-endemic areas (review) |
| title_full_unstemmed | Identification of seropositive wild boars in Eurasia as a sign of possible formation of African swine fever-endemic areas (review) |
| title_short | Identification of seropositive wild boars in Eurasia as a sign of possible formation of African swine fever-endemic areas (review) |
| title_sort | identification of seropositive wild boars in eurasia as a sign of possible formation of african swine fever endemic areas review |
| topic | asf virus antibodies seroprevalence chronic persistent survivor virulence |
| url | https://www.agronauka-sv.ru/jour/article/view/1404 |
| work_keys_str_mv | AT tyubespalova identificationofseropositivewildboarsineurasiaasasignofpossibleformationofafricanswinefeverendemicareasreview AT aaglazunova identificationofseropositivewildboarsineurasiaasasignofpossibleformationofafricanswinefeverendemicareasreview |