Interim ICC Report – March 2019 #08 (13.03.19)
Interim ICC Report – March 2019 #08 (13.03.19) – Report from France on EHV-1 Neurological Disease & Equine Influenza and from UK on Equine Influenza
Equine Herpes Virus-1 (EHV-1) Neurological Disease
On 15 March 2019, RESPE confirmed an outbreak of EHV-1 neurological disease affecting three vaccinated horses on a premises in Finistere. Clinical signs included pyrexia and neurological signs. Control measures including isolation of the affected animals, movement restrictions and quarantine are in place. Positive diagnoses were confirmed by PCR on nasopharyngeal swabs. There are 98 in-contacts.
Equine Influenza (EI)
On 15 March 2019, RESPE confirmed an outbreak of EI on two Thoroughbreds on a premises in Oise. Positive diagnoses were confirmed by PCR on a nasopharyngeal swab by LABEO-Frank Duncombe.
Equine Influenza (EI)
On 13 March 2019, AHT confirmed an outbreak of EI on a premises in Flintshire. The index case presented on 2 March 2019 with clinical signs of pyrexia, coughing, serous nasal discharge and lethargy. A nasopharyngeal swab taken on 3 March 2019 had a low copy number negative result on PCR. Vaccination status is unknown. A blood sample was taken on 3 March and 8 March. This was tested by haemagglutination inhibition, with a greater than four-fold rise in titre noted between the two samples, with no vaccination administered in this time frame, confirming a diagnosis of EI. The premises had received two new arrivals from Europe two weeks previously, of which one of these presented with coughing and nasal discharge but a nasopharyngeal swab taken on 8 March was negative. There were a further two horses with clinical signs of coughing and nasal discharge, one of these had a nasopharyngeal swab taken on 8 March which was negative. Serology results are pending. There are a total of 11 horses on the premises, of which the majority are vaccinated.
Please see https://www.aht.org.uk/disease-surveillance/equiflunet/equiflunet-for-vets for detailed information regarding optimal samples to take depending on duration of clinical signs at time of presentation. This outbreak demonstrates the benefits of utilising both PCR and serology to rule in/out a diagnosis of EI.
On 15 March 2019, AHT confirmed an outbreak of EI on a premises in Yorkshire. There is one laboratory confirmed case by PCR on a nasopharyngeal swab. The horse is unvaccinated and presented with coughing, inappetence, mucopurulent nasal discharge and pyrexia. Two days before this horse presented, two unvaccinated Donkeys presented with respiratory signs. There is also one other in contact with clinical signs of nasal discharge that is unvaccinated. There are a total of 20 horses at the premises and the majority are vaccinated. Voluntary movement restrictions have been instigated.
On 15 March 2019, AHT confirmed an outbreak of EI on a premises in Staffordshire. There is one laboratory confirmed case by PCR on a nasopharyngeal swab. The horse is unvaccinated and presented with a 10 day history of a mild dry cough. There is one unvaccinated in contact that has since developed a slight cough. Voluntary movement restrictions have been instigated.
International Collating Centre