International Breeders' Meeting
INTERNATIONAL COLLATING CENTRE
Animal Health Trust
Information Exchange on Infectious Equine Disease
Lanwades Park, Kentford, Newmarket, Suffolk CB8 7UU, England
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PLEASE CONTACT RICHARD NEWTON OR MAIRE O'BRIEN ON THE ABOVE NUMBER, OR E-MAIL
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Interim Report – February 2015 #4 (10.02.15)
Equine Herpes Virus-4 (EHV-4) Respiratory Disease
On 10th February 2015, Réseau d’Epidémio-Surveillance en Pathologie Equine (RESPE) confirmed an outbreak of EHV-4 respiratory disease in Calvados, France. The positive mare was a four-year-old French saddlebreed presented with pyrexia and nasal discharge over the preceding five days. The positive diagnosis was made by qPCR on a nasopharyngeal swab by the Frank Duncombe Laboratory, France. There are four other horses affected at the premises among 44.
On 9th February 2015, The German Chief Veterinary Officer has released a follow-up report regarding the occurrence of Glanders in Germany. It reads:
The affected holding was put immediately under restriction following the first serological positive test on the1st December 2014. All other equines of the affected holding have been investigated three times every two weeks with negative results. The affected equine was culled for diagnostic purposes. Cleansing and disinfection of the affected holding has been carried out and finished on 27th January 2015. The infection with B. mallei was resolved from 27th January 2015. Epidemiological investigations have started with the help of Friedrich-Loeffler Institute. It is known that the affected animal had never been moved outside of Germany. There might have been indirect contacts to South America. Further investigations showed that these indications could not be substantiated. Investigations of equines kept in contact holdings in other German Länder showed all negative results with regard to an infection of B. mallei. The source of infection is still unknown.
Equine Herpes Virus-1 (EHV-1) Abortion
On the 9th February 2015, the Animal Health Trust reported a case of EHV-1 abortion in Berkshire, England. The affected animal was a nine-year-old vaccinated Thoroughbred mare. Positive diagnosis was made by qPCR on fetal tissues. No other EHV-1 abortions or suspected cases of EHV-1 infection have been detected on the premises this season.
UNITED STATES OF AMERICA
Equine Herpesvirus-1 (EHV-1) Respiratory Disease:
Two confirmed cases of EHV-1 respiratory disease have been reported on separate stables in Galveston County, Texas. Both horses were positive for the neuropathogenic strain of the virus on nasal swabbing. Neither affected animal has developed signs of neurological disease. Both stables have been placed under quarantine restrictions.
Equine Herpesvirus-1 (EHV-1) Neurological Disease:
Two outbreaks of EHV-1 neurological disease have recently been reported in the USA, one in Ohio and the other in Virginia. In the case of the Ohio incident, two horses with fever and respiratory signs, one of which also exhibited neurological signs consistent with EHV-1, were transported to an equine clinic in central Kentucky. Confirmation of a diagnosis was based on detection of a strain of EHV-1 on a nasal swab collected from the affected animal. The neurological horse was euthanased.The second horse which was non-neurological was also positive for EHV-1 (neuropathogenic strain) on nasal swabbing.
The second EHV-1 event involved a 14-year-old gelding on a boarding stable in Albemarle County, Virginia, that first displayed neurological signs at the end of January. The condition of the affected horse that became recumbent and which has been treated symptomatically, is now stable. Quarantine restrictions remain in force on all horses entering or exiting the affected facility. Laboratory results on this case are pending.
International Collating Centre
International Collating Centre