Rift Valley fever virus—How and where virus is maintained during inter-epidemic periods
Purpose of Review Rift Valley fever (RVF) virus is associated with recurring disease epidemics among livestock and humans in sub-Saharan Africa and Middle East, where the virus is endemic in certain ecosystems. Since the mechanisms of its maintenance during the long (4–10 year) inter-epidemic period...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2019
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/98544 |
| _version_ | 1855529243908243456 |
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| author | Njenga, M. Kariuki Bett, Bernard K. |
| author_browse | Bett, Bernard K. Njenga, M. Kariuki |
| author_facet | Njenga, M. Kariuki Bett, Bernard K. |
| author_sort | Njenga, M. Kariuki |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Purpose of Review Rift Valley fever (RVF) virus is associated with recurring disease epidemics among livestock and humans in sub-Saharan Africa and Middle East, where the virus is endemic in certain ecosystems. Since the mechanisms of its maintenance during the long (4–10 year) inter-epidemic periods (IEPs) are poorly understood, we reviewed the latest findings that shed light on this, and identify ecological factors unique to the endemic areas. Recent Findings Recent studies reported acute RVF cases in humans and livestock, and significant disease prevalence during IEPs, indicating low-level cycling of the virus in wildlife, livestock, and humans. Niche modeling identified ecological factors that seem important in supporting the mosquito vector and virus maintenance, and the occurrence of RVF epidemics. Summary The virus is primarily maintained by circulating at low levels among wildlife, livestock, and humans, transmitted by mosquito vectors in ecosystems characterized by low annual rainfall during non-El Niño climatic periods and certain soil types. The findings indicate that prolonged survival of the virus in mosquito eggs, suggested in previous studies, may not be required for its maintenance. |
| format | Journal Article |
| id | CGSpace98544 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace985442023-12-08T19:36:04Z Rift Valley fever virus—How and where virus is maintained during inter-epidemic periods Njenga, M. Kariuki Bett, Bernard K. zoonoses animal diseases rift valley fever virus Purpose of Review Rift Valley fever (RVF) virus is associated with recurring disease epidemics among livestock and humans in sub-Saharan Africa and Middle East, where the virus is endemic in certain ecosystems. Since the mechanisms of its maintenance during the long (4–10 year) inter-epidemic periods (IEPs) are poorly understood, we reviewed the latest findings that shed light on this, and identify ecological factors unique to the endemic areas. Recent Findings Recent studies reported acute RVF cases in humans and livestock, and significant disease prevalence during IEPs, indicating low-level cycling of the virus in wildlife, livestock, and humans. Niche modeling identified ecological factors that seem important in supporting the mosquito vector and virus maintenance, and the occurrence of RVF epidemics. Summary The virus is primarily maintained by circulating at low levels among wildlife, livestock, and humans, transmitted by mosquito vectors in ecosystems characterized by low annual rainfall during non-El Niño climatic periods and certain soil types. The findings indicate that prolonged survival of the virus in mosquito eggs, suggested in previous studies, may not be required for its maintenance. 2019-03 2018-12-12T07:20:25Z 2018-12-12T07:20:25Z Journal Article https://hdl.handle.net/10568/98544 en Open Access Springer Njenga, M.K. and Bett, B. 2018. Rift Valley fever virus—How and where virus is maintained during inter-epidemic periods. Current Clinical Microbiology Reports 6(1): 18–24. |
| spellingShingle | zoonoses animal diseases rift valley fever virus Njenga, M. Kariuki Bett, Bernard K. Rift Valley fever virus—How and where virus is maintained during inter-epidemic periods |
| title | Rift Valley fever virus—How and where virus is maintained during inter-epidemic periods |
| title_full | Rift Valley fever virus—How and where virus is maintained during inter-epidemic periods |
| title_fullStr | Rift Valley fever virus—How and where virus is maintained during inter-epidemic periods |
| title_full_unstemmed | Rift Valley fever virus—How and where virus is maintained during inter-epidemic periods |
| title_short | Rift Valley fever virus—How and where virus is maintained during inter-epidemic periods |
| title_sort | rift valley fever virus how and where virus is maintained during inter epidemic periods |
| topic | zoonoses animal diseases rift valley fever virus |
| url | https://hdl.handle.net/10568/98544 |
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