Schmallenburg Virus

Schmallenburg Virus (SBV), a name that brings dread to people involved with livestock, has been detected in Belgium, Germany, the Netherlands and recently in the United Kingdom. The SBV is transmitted by midges, mosquitoes and ticks and with the increase of warm and damp weather, it is ideal weather for the production of these virus vectors.It has been suggested by DEFRA that the insect vectors were blown across the English channel.

But what does the virus do? It can cause dehydration in animals through diarrhoea, decreases in milk production and fevers in adult animals and if a pregnant animal is infected, it can cause a late abortion or worse cause birth defects in cattle, goats and sheep.

The disease is being tracked across Europe and the United Kingdom.

The Animal Health and Veterinary Laboratory Agency reported, on the 13th of August, that "there are 276 UK farms reporting SBV: 53 in cattle, 220 in sheep and 3 premises which reported sheep (earlier in the year) and are now also reporting cattle cases".

 DEFRA suggests that although SBV "is not a notifiable disease...farmers are asked to contact their veterinary surgeon if they encounter cases of ruminant neonates or fetuses which are stillborn, show malformations or are showing nervous disease".

The Farmers' Weekly reports this week that "There is widespread concern that cases of the Schmallenberg virus (SBV) are being under-reported by farmers." It continues that "In northern Europe the proportion of sheep holdings with confirmed SBV was 4% a country and 7.6% a region.
But evidence from the Netherlands, France and Germany showed the number of animals infected on a single farm had been as high as 70-100%, the report revealed".

For more information on SBV, have a look at the Farmers' Weekly page or DEFRA's page or the NFU's page or the AHVLA's page.