The particular strain of bluetongue currently affecting livestock, serotype 3 (BTV-3), was first found in England in 2023.
It can often kill sheep, whilst in cattle it is less likely to be fatal, but can cause a drop in milk production, and lead to failed pregnancies and birth defects.
Symptoms of the virus include fever, lameness, facial swelling, nasal discharge and mouth ulcers.
In a statement, the Department for Food and Rural Affairs said bluetongue posed no threat to the public or food safety.
Whilst vaccinations are having an impact it said, bluetongue restricted zones remain across the whole of England and Wales.