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Equine disease surveillance: quarterly summary

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Equine disease surveillance, October to December 2017

  • Summary of UK disease surveillance for the fourth quarter of 2017

  • International disease occurrences, October to December 2017

  • Pilot trial of a new protocol for the control of contagious equine metritis in Great Britain

UK disease surveillance: October to December 2017


The results of virological testing for October to December 2017 are summarised in Table 1 and include data relating to equine viral arteritis (EVA), equine infectious anaemia (EIA) and West Nile virus (WNV) from the APHA, Weybridge. The sample population for the APHA is different from that for the other contributing laboratories, as the APHA’s tests are principally in relation to international trade (EVA, EIA and WNV). The APHA also provides testing for WNV as part of clinical work up of neurological cases, to exclude infection, on specific request and provided the local regional APHA office has been informed.

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Table 1: Results of virological testing, October to December 2017

No equine viral notifiable diseases were confirmed in the UK in the fourth quarter of 2017.

Equine herpesvirus

EHV-4 respiratory disease

The Animal Health Trust (AHT) confirmed three cases of equine herpesvirus (EHV) type 4 (EHV-4) respiratory disease in the final quarter of 2017.

The first case was confirmed on 23 October 2017 in a horse among a group of 10 on a racing premises in Gwent. A two-year-old thoroughbred filly presented with clinical signs that included coughing, nasal discharge, lymphadenopathy and pyrexia.

On 8 December, a single case of subclinical EHV-4 respiratory infection was confirmed on routine quarantine sampling among a group of five thoroughbred mares on a premises in Oxfordshire. The case had no clinical signs and was maintained in isolation with contacts.

About this report

This report is produced by Defra, the Animal Health Trust (AHT) and the British Equine Veterinary Association. It is a shortened version of the full report for October to December 2017, which also includes a list of all contributing laboratories. The full report and all previous reports …

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