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International Breeders' Meeting

INTERNATIONAL COLLATING CENTRE


    Animal Health Trust
    Information Exchange on Infectious Equine Disease

    Lanwades Park, Kentford, Newmarket, Suffolk CB8 7UU, England
    Telephone: + 44 (0) 8700 502424 extension 1266
    Fax: + 44 (0) 1638 555601
    Website: http://www.aht.org.uk
    /icc/linksicc.html


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    PLEASE NOTE DUE TO A CHANGE IN PERSONNEL, IN FUTURE PLEASE CONTACT
    RICHARD NEWTON OR MADELEINE McNAUGHT ON THE ABOVE NUMBER, OR
    E-MAIL madeleine.mcnaught@aht.org.uk TO SUBMIT REPORTING INFORMATION

 

REPORT FOR THE THIRD QUARTER OF 2001

AUSTRALIA

Queensland

STRANGLES
3 confirmed isolations from small numbers of horses with strangles in separate locations.

VIRUS ABORTION
1 confirmed case on histopathology only. No virus isolated.

EQUINE INFECTIOUS ANAEMIA
3 cases confirmed in endemic area in July. No cases since.

New South Wales

VIRUS ABORTION
Single case of EHV-1 abortion was confirmed.

STRANGLES
Isolated cases reported and confirmed.

Victoria

VIRUS ABORTION
1 confirmed case on a single property which reported a single case in last report.

STRANGLES
Mostly scattered single cases. One small outbreak occurred in a provincial TB racing stable.

CANADA

Unfortunately no report received from Canada for the 3rd Quarter.

DENMARK

Some minor outbreaks of strangles throughout the country. Diagnosis made by clinical signs.

FRANCE

INFLUENZA
Outbreaks affecting Thoroughbreds in Calvados, Yvelines and Oise (in 3 different stables), diagnosed by serology

Non-Thoroughbred trotting horses have been affected in Orne and Vendée. Non-Thoroughbred saddler horses have been affected in Ain, Cher, Eure-et-Loir, Manche, Oise, Haut-Rhin, Seine-et-Marne, Yvelines (in 3 different stables) and Somme. Other types of horses have also been affected in Yvelines and Val d'Oise. Diagnosis was by serology.

EQUINE HERPES VIRUS
The abortion form of the virus has occurred in non-Thoroughbred trotting horses in Orne. Diagnosis was by virus isolation and EHV-1 PCR.

The respiratory form occurred in Thoroughbreds in Calvados (2 different stables), Oise (5), Sarthe, Yvelines and Val d'Oise and was diagnosed by serology.

The respiratory form has also occurred in non-Thoroughbred trotting horses in Orne, Seine-et-Marne and Vendée. Saddler horses were affected in Ain, Calvados, Eure-et-Loir (2 different stables), Manche, Oise, Haut-Rhin, Seine-et-Marne, Yvelines (3) and Somme. Other types of horses have been affected in Val d'Oise.

EQUINE INFECTIOUS ANAEMIA
A single non-Thoroughbred "Camarguais-like" horse in Hérault tested positive on a Coggins test. The horse was destroyed.

RABIES
France is now rabies free.

PIROPLASMOSIS
Endemic in South of France.

GERMANY

Nothing to report for the 3rd Quarter

HONG KONG

Nothing to report for the 3rd Quarter.

REPUBLIC OF IRELAND

ROTAVIRUS DIARRHOEA
Outbreak commenced in August with diagnosis by the Irish Equine Centre by latex agglutination. Approximately 4 Thoroughbreds were affected on one premise. The outbreak was limited with one severe case with colic in a 4 month old and three mild in-contact cases. All mares were vaccinated with Duvaxyn R.

Outbreak commenced mid-August and diagnosis was by latex agglutination. No further history.

SALMONELLOSIS
Diagnosed by Irish Equine Centre. One horse affected.

STRANGLES
Diagnosed by Irish Equine Centre by agent isolation. 13 horses on 10 premises have been affected.

ITALY

EQUINE HERPES VIRUS
Some neurological cases with favourable outcomes have occurred in vaccinated horses.

STRANGLES
Sporadic cases have occurred.

PIROPLASMOSIS
Endemic in the centre of South Italy.

JAPAN

Additional report received from Japan for the 2nd Quarter: one Anglo-Arab gelding (19 years old) on 16th May showed clinical signs of tetanus and died.

EQUINE PROTOZOAL MYELOENCEPHALITIS
One Thoroughbred horse showed severe ataxia of both hind legs on 24th July. The horse deteriorated and was euthanased on 27th July. The diagnosis was confirmed by post-mortem histopathological and immunohistochemical tests of the cervial spinal cord lesion by immunoblotting. Antibodies against Sarcocystis neurona were detected in serum and cerebrospinal fluid collected at the time of necropsy. The horse had been imported from the United States on 27th March 2000.

NEW ZEALAND

Nothing to report for the 3rd Quarter.

SPAIN

Nothing to report for the 3rd Quarter.

SWEDEN

INFLUENZA
Two isolated cases in riding horses.

STRANGLES
50 cases have been reported and it is likely that there were many more. Trotting and riding horse organisations are very worried as clinical signs seem to be more severe than earlier in the year.

SWITZERLAND

In regard to official notifications, the quarter under review was very quiet. However, consideration must be given to the fact that the minds of large animal practitioners have been kept busy with other problems in the last few weeks (e.g. BSE, FMD) and that reports may have not been made as carefully as otherwise.

EQUINE HERPES VIRUS-1
One clinical case and notification of three serological diagnosis.

EQUINE VIRAL ARTERITIS
One serological diagnosis only.

STRANGLES
Four notifications in the Midlands and Grisons.

PIROPLASMOSIS
Nine serological findings only (2 B.equi, 5 B.caballi, 2 B.caballi and equi)

EHRLICHIOSIS
One clinical case in the western part of the country in July

TURKEY

Pneumocystis carinii
Three neonatal foal deaths recorded during the past season, were found to be caused by a diffuse, subacute interstitial pneumonia, non-responsive to what was considered to be, appropriate antibacterial and supportive therapy.

Immunostaining of post-mortem lung tissue samples, with monoclonal, Pneumocystis carinii, specific- antibody confirmed an initial light microscope diagnosis of pneumocystosis.

UNITED ARAB EMIRATES

PIROPLASMOSIS
Babesia equi - endemic
Babesia caballi - endemic

UNITED KINGDOM EQUINE

INFLUENZA
A single case detected on 14th August with diagnosis confirmed by the Animal Health Trust by serology. The outbreak was limited affecting non-Thoroughbred horses on one premise. The horses were not vaccinated against influenza. Six out of thirty animals on the yard were clinically affected. Diagnosis by seroconversion between paired sera confirmed in one animal only. Other affected animals already convalescent at time of sampling.

EQUINE HERPESVIRUS - RESPIRATORY DISEASE
Outbreak commenced on 2nd July with diagnosis confirmed by the AHT. The outbreak was clinically mild affecting performance horses and Thoroughbreds which were not vaccinated against EHV. No clinical signs of respiratory disease reported but poor performance noted Seroconversions to EHV detected in 8/30 horses sampled. High EHV titres suggesting recent exposure to infection detected in a further 4 horses.

EQUINE HERPES VIRUS ABORTION
Single case detected on 24th September 2001 with EHV-4. Diagnosis by the AHT by PCR. The case was limited to Thoroughbred breeding stock and affected one horse on one premise which had not been vaccinated against EHV. Abortion at 166 days. No in-contact pregnant mares.

EQUINE HERPES VIRUS-PARALYSIS
A single suspected case occurred on 6th September. Presumptive diagnosis by the AHT on the basis of serology. The outbreak was limited to one horses on one premise which had been vaccinated against EHV. Pyrexia, nasal discharge and occasional cough within 3 days of arrival in UK from Belgium. Muscle fasciculations and hind quarter weakness. High circulating EHV CF antibody titres suggested EHV as the causative agent. Virus isolation was negative.

STRANGLES
Strangles remains endemic in the non-Thoroughbred population. No cases have been confirmed in Thoroughbreds during the period.

UNITED STATES OF AMERICA

Please see Enclosure 1 for disease report from the USA.

 

REGARDS

INTERNATIONAL COLLATING CENTRE