Schmallenberg virus (SBV) infection has now been identified on 235 UK farms, according to the latest GB testing results from the Animal Health and Veterinary Laboratories Agency (AHVLA).

Clinical signs of Schmallenberg disease in a lamb.Figures releases today (March 30, 2012) confirm that, so far, 25 of the positive cases have been diagnosed in cattle and 210 in sheep. However, the infection has yet to be discovered in other species, such as goats, camelids or deer.

The number of UK counties with SBV infection has remained static since March 23, although the first cases of the virus in cattle have now been confirmed in Essex, Devon and Cornwall.

AHVLA still claims that infection has only been identified in areas at risk of midge incursion from Northern Europe during summer / autumn 2011.

The agency has now stated that domestic midges could have transmitted SBV within the affected areas after biting an infected animal.

Vets and farmers in need of further guidance should contact their local AHVLA Laboratory (England and Wales) or SAC Disease Surveillance Centre (Scotland).

The current figures courtesy of AHVLA (correct as of March 30, 2012), are:

County Positive holdings (Sheep) Positive holdings (Cattle) Total
Bedfordshire 1 0 1
Cambridgeshire 1 0 1
Channel Islands 2 0 2
Cornwall 2 1 3
Devon 7 1 8
Dorset 4 0 4
East Sussex 37 3 40
Essex 11 1 12
Greater London 1 0 1
Hampshire 12 0 12
Hertfordshire 6 0 6
Isle of Wight 2 0 2
Kent 37 4 41
Leicestershire 1 0 1
Lincolnshire 1 0 1
Norfolk 16 4 20
South Gloucestershire 4 0 4
Somerset 3 0 3
Suffolk 12 5 17
Surrey 5 1 6
Warwickshire 2 0 2
West Berkshire 2 0 2
West Sussex 34 3 37
Wiltshire 7 2 9
Total 210 25 235
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