Spread and impact of the Schmallenberg virus epidemic in France in 2012–2013

BMC Veterinary Research

Didier Calavas²  Pascal Hendrikx⁴  Stephan Zientara³  Gina Zanella³  Cyril Viarouge³  Corinne Sailleau³  Emmanuel Bréard³  Eric Collin⁶  Alexandre Fediaevsky¹  Jean-Baptiste Perrin¹  Anne Touratier⁵  Kristel Gache⁵  Morgane Dominguez⁴ 

[1] Animal Health Unit, French General Directorate for Food (DGAL), Ministry of Agriculture, the Food Processing Industry and Forestry, Paris, France;Lyon Laboratory, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Lyon, France;Maisons-Alfort Laboratory, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Maisons-Alfort, France;Epidemiological Surveillance Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Maisons-Alfort, France;National animal health farmers’ organisation (GDS France), Paris, France;French National Organisation for Veterinary Technical Groups (SNGTV), Paris, France

关键词: Cattle;    Sheep;    Emerging disease;    Impact;    France;    Schmallenberg virus;   

Others  :  1114934
DOI  :  10.1186/s12917-014-0248-x

 received in 2014-06-17, accepted in 2014-10-02,  发布年份 2014

【 摘 要 】

Background

The Schmallenberg virus (SBV) emerged in Europe in 2011 and caused a widespread epidemic in ruminants.

In France, SBV emergence was monitored through a national multi-stakeholder surveillance and investigation system. Based on the monitoring data collected from January 2012 to August 2013, we describe the spread of SBV in France during two seasons of dissemination (vector seasons 2011 and 2012) and we provide a large-scale assessment of the impact of this new disease in ruminants.

Results

SBV impact in infected herds was primarily due to the birth of stillborns or deformed foetuses and neonates. Congenital SBV morbidity level was on average moderate, although higher in sheep than in other ruminant species. On average, 8% of lambs, 3% of calves and 2% of kids born in SBV-infected herds showed typical congenital SBV deformities. In addition, in infected herds, farmers reported retrospectively a lower prolificacy during the vector season, suggesting a potential impact of acute SBV infection during mating and early stages of gestation.

Conclusions

Due to the lack of available control and prevention measures, SBV spread quickly in the naive ruminant population. France continues to monitor for SBV, and updated information is made available online on a regular basis [http://www.plateforme-esa.fr/ webcite]. Outbreaks of congenital SBV are expected to occur sporadically from now on, but further epidemics may also occur if immunity at population level declines.

【 授权许可】

   
2014 Dominguez et al.; licensee BioMed Central Ltd.

【 图 表 】

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