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/]. Outbreaks of congenital SBV are expected to occur sporadically from now on, but further epidemics may also occur if immunity at population level declines.
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http://dx.doi.org/10.1186/s12917-014-0248-x | DOI Listing |
Methods Mol Biol
December 2024
Faculty of Veterinary Medicine, Research Unit of Epidemiology and Risk analysis applied to Veterinary sciences (UREAR-ULiège), Fundamental and Applied Research for Animal and Health (FARAH) Center, University of Liege, Liege, Belgium.
In the late summer of 2011, the Netherlands reported a cluster of reduced milk yield, fever, and diarrhea in dairy cattle. In March 2012, congenital malformations appeared, and Schmallenberg virus (SBV) was identified, becoming one of the few orthobunyaviruses distributed in Europe. Initially, little was known about the pathogenesis and epidemiology of these viruses in the European context, so assumptions were largely extrapolated from related viruses and other regions worldwide.
View Article and Find Full Text PDFS Afr J Surg
October 2024
Bongani Hospital, South Africa.
Small bowel volvulus (SBV) is a rare cause of bowel obstruction, specifically in adults, accounting for approximately 1% of bowel obstruction in the adult population in North America. It is more common in the neonatal and paediatric population, mostly due to congenital abnormalities such as malrotation, atresia and congenital bands. We present two cases of SBV managed at a level 2 provincial hospital within a 2-month period.
View Article and Find Full Text PDFMedicine (Baltimore)
August 2024
Department of Surgery, Social Welfare Organization Saiseikai Imperial Gift Foundation Inc., Saiseikai Kazo Hospital, Kazo, Japan.
Rationale: Small bowel volvulus (SBV) is a rare cause of acute abdominal pain in adults, which requires surgical intervention to prevent small bowel necrosis. Primary SBV is rare, and its preoperative diagnosis is challenging. This report describes a case of primary SBV diagnosed preoperatively and treated laparoscopically.
View Article and Find Full Text PDFJ Gen Virol
June 2024
Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany.
Front Vet Sci
March 2024
Department of Microbiology, College of Medicine and Health Science, University of Gondar, Gondar, Ethiopia.
Schmallenberg virus (SBV) is an arthropod-borne virus that emerged recently in northwestern Europe in 2011 that affects domestic and wild ruminants and induces abortion, stillbirth, and newborns with congenital anomalies. Since its discovery, SBV has spread very rapidly to too many countries in the world. The overall serological investigation of SBV is needed to improve modeling predictions and assess the overall impact on ruminant animals, which helps to design interventions for control and prevention strategies.
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