Article Text

Download PDFPDF
Farm Animal Practice
Differential diagnosis of bluetongue in cattle and sheep
  1. Susanna Williamson

    Susanna Williamson graduated from the Royal Veterinary College (RVC) in 1983. She is a veterinary investigation officer at Veterinary Laboratories Agency (VLA) – Bury St Edmunds.

  2. Nick Woodger

    Nick Woodger graduated from the RVC in 1994. He is a part-time veterinary investigation officer at VLA – Bury St Edmunds, and a private diagnostic veterinary histopathologist.

  3. Karin Darpel

    Karin Darpel graduated from Hanover Veterinary School, Germany, in 2003. She is a postdoctoral scientist in arbovirology at the Institute for Animal Health, Pirbright.


IN 2006, bluetongue virus serotype 8 (BTV-8) caused the first recorded bluetongue outbreak in northern Europe. This occurred in countries with no previous history of bluetongue virus incursion, including the Netherlands, Belgium and Germany. Following a halt to disease transmission over the winter, the virus re-emerged in 2007, spreading throughout northern Europe and eventually reaching the UK in September 2007. The chances that BTV-8 will emerge again in the UK in 2008 are considered to be very high. Due to the wide spectrum of clinical signs and variation in severity of disease seen in cattle and sheep with bluetongue, a variety of diseases may resemble some or all features of bluetongue infection. This article describes the main differential diagnoses of bluetongue in cattle and sheep, and summarises the distinguishing features and laboratory tests that can assist in their differentiation.

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.