期刊
MEDICAL AND VETERINARY ENTOMOLOGY
卷 29, 期 3, 页码 263-275出版社
WILEY
DOI: 10.1111/mve.12109
关键词
Culicoides; midges; monitoring; Schmallenberg virus; vector
资金
- Belgian Federal Agency for the Safety of the Food Chain (FAVV-AFSCA)
- Belgian Federal Public Service 'Public Health and Safety of the Food Chain and Environment'
- European Union
- Union for studies on SBV [2012/349/EU]
In 2011, Culicoides (Diptera: Ceratopogonidae) were collected at 16 locations covering four regions of Belgium with Onderstepoort Veterinary Institute (OVI) traps and at two locations with Rothamsted suction traps (RSTs). Quantification of the collections and morphological identification showed important variations in abundance and species diversity between individual collection sites, even for sites located in the same region. However, consistently higher numbers of Culicoides midges were collected at some sites compared with others. When species abundance and diversity were analysed at regional level, between-site variation disappeared. Overall, species belonging to the subgenus Avaritia together with Culicoides pulicaris (subgenus Culicoides) were the most abundant, accounting for 80% and 96% of all midges collected with RSTs and OVI traps, respectively. Culicoides were present during most of the year, with Culicoides obsoletus complex midges found from 9 February until 27 December. Real-time reverse-transcription polymerase chain reaction screening for Schmallenberg virus in the heads of collected midges resulted in the first detection of the virus in August 2011 and identified C. obsoletus complex, Culicoides chiopterus and Culicoides dewulfi midges as putative vector species. At Libramont in the south of Belgium, no positive pools were identified.
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