Monday, October 1, 2012

Further information on the EIA outbreak as well as EHV-4 has been provided by the International Collating Centre (ICC)/AHT


Interim Report - October 2012 #2 (02.10.12)


Equine Herpes Virus 4 (EHV-4) Respiratory Disease

On 24th August 2012 an outbreak of EHV-4 was reported in Côtes-d'Armor, France by Réseau d'Epidémio-Surveillance en Pathologie Equine (RESPE). The affected horse was male French Trotter and showed clinical signs of a cough and nasal discharge. A positive diagnosis was confirmed at the Frank Duncombe laboratory by PCR of a nasal swab.



Equine Infectious Anaemia (EIA)

On 1st October 2012 the Directorate for Thoroughbred Breeding and Racing in Germany reported that a total of ten outbreaks of EIA have occurred in Germany between July and September 2012. Four premises were affected between 6th August and 24th September in the Federal State of Rheinland-Pfalz. Two premises have been affected in the district of Vulkaneifel  with 21 and 50 susceptible horses respectively, and single premesis in the districts of Altenkirchen (43 susceptible horses) and Cochem-Zell (23 susceptible horses). Five outbreaks occurred between 15th and 17th August in the Federal State of Nordrhein-Westfalen. Two premises were affected in Rhein-Sieg-Kreis district and single premises in Erftkreis, Oberbergischer Kreis and Viersen. During the evening of the 1st October veterinary authorities confirmed a further case of EIA in Nordrhein-Westfalen at the race course in Cologne.


Each outbreak affected single horses which were subsequently euthanized. Restrictions on affected premises included quarantine measures and movement controls and epidemiological investigations are ongoing in all outbreaks. There is an apparent epidemiological link between two outbreaks in Rheinland-Pfalz and the five cases in Nordrhein-Westfalen. The outbreak at the race course in Cologne is linked to several other cases in Nordrhein-Westfalen and the racing events scheduled for 3rd and 14th October 2012 have been cancelled. The source of the outbreaks is believed to be an equine hospital located in the administrative district of Rhein-Sieg-Kreis, in which one affected horse had been used as blood plasma donor. It is unknown how, when and where  this donator horse developed the infection. A screening program is being carried out involving 2039 horses that had been in contact with the donor horse between September 2009 and June 2012.


The Interim report may also be read here




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