Summary Report for Third Quarter 2017

Please note that the Australian reports are being reported one quarter in arrears behind the quarter being reported. However, there is a slight delay with the SECOND QUARTER Report of 2017 for Australia, which will be circulated as soon as received. THIRD QUARTER reports for 2017 for other countries are provided after this in the usual way.

This report is based on information received by the Animal Health Trust, Registered Charity Number 209642, which cannot accept any responsibility for the accuracy or
completeness of such information.

REPORT FOR SECOND QUARTER 2016 FROM AUSTRALIA
The report for SECOND quarter 2017 from Australia will follow at a later date.

REPORT FOR THE THIRD QUARTER 2017

ARGENTINA
Regret no report received.

AUSTRALIA
Report pending.

CANADA
Equine Infectious Anemia (EIA)

Between 1 July and 30 September 2017, there were a total of 14 EIA positive equines identified in the provinces of Alberta (two horses) and Manitoba (12 horses). The positive animals were located on seven separate premises, Alberta (two premises) and Manitoba (five premises).

One of the Alberta cases was epidemiologically linked to a previously identified clinical case and the other was identified during export testing.

Twelve of the 14 positive Manitoba animals were identified during pre-entry testing for events. The remaining two were found as a result of 45-day follow-up testing on one of the affected premises.

No clinical signs were noted at the time of sampling for any of the positive cases.

CHILE
Regret no report received.

DENMARK
Strangles (Streptococcus equi)
Strangles was confirmed in eight horses on one premises during the third quarter 2017. There are currently no further details available.

FRANCE (Information supplied via the RESPE, the French network for epidemiosurveillance of equine diseases)
Equine Herpes Virus-4 (EHV-4) Respiratory Disease
During the third quarter 2017 nine outbreaks of EHV-4 respiratory disease were confirmed (seven outbreaks with one case, two outbreaks with two cases). These outbreaks occurred in Calvados, Côtes-d’Armor, Ille-et-Vilaine, Orne and Pas-de-Calais. Affected horses showed clinical signs of fever, nasal discharge, oedema and coughing. For all cases, positive diagnoses were confirmed on nasopharyngeal swabs using PCR.

Piroplasmosis
Remains endemic in France.

Rotavirus
During the third quarter 2017 five outbreaks of rotavirus infection were confirmed in Gironde, Mayenne and Orne in foals showing clinical signs of diarrhoea, fever and/or weakness (four outbreaks with one case, one outbreak with three cases). Positive diagnoses were made by PCR on faeces or intestinal contents.

Strangles (Streptococcus equi)
During the third quarter 2017 twelve outbreaks of strangles were reported (eleven outbreaks with one case, one outbreak with two cases). These outbreaks occurred in Allier, Ariège, Bouches-du-Rhône, Calvados, Côtes-d’Armor, Gard, Hérault, Ille-et-Vilaine, Moselle and Orne. Affected horses showed clinical signs of dyspnoea, nasal discharge, lymphadenopathy, dysphagia, fever, conjunctivitis and coughing. Positive diagnoses were made by PCR or bacteriology on nasopharyngeal swabs (six cases), nasal swabs (four cases) or pus or purulent nasal discharge (two cases).

GERMANY
Please note that cases and outbreaks from Germany have already been notified via interim reports during the third quarter.

Additional results received from Labor Dr Boese GmBh – an HBLB CEMO registered laboratory
Contagious Equine Metritis (CEM)
CEM was confirmed in 10 Icelandic horses (seven stallions, one gelding and two mares) on five separate premises during the third quarter 2017. Positive diagnoses were confirmed by PCR on genital swabs.

Equine Herpes Virus-1 (EHV-1) Neurological Disease
EHV-1 neurological disease was confirmed in four horses on one premises during the third quarter 2017. Positive diagnoses were confirmed by PCR nasopharyngeal swabs.

Equine Herpes Virus-4 (EHV-4) Respiratory Disease
EHV-4 respiratory disease was confirmed in nine horses on four separate premises during the third quarter 2017. Positive diagnoses were confirmed by PCR on nasopharyngeal swabs.
Strangles (Streptococcus equi)

Strangles was confirmed in seven horses on seven separate premises during the third quarter 2017. The affected animals showed clinical signs of pyrexia, nasal discharge and swollen submandibular lymph nodes. Positive diagnoses were confirmed by bacterial culture and PCR on nasopharyngeal swabs (five horses), on abscess material from submandibular lymph nodes (one horse) and on a guttural pouch wash (one horse).

HONG KONG
Confirmed nothing to report.

IRELAND (Republic of)
Atypical Myopathy
One case of atypical myopathy (seasonal pasture associated myopathy) was confirmed during the third quarter 2017. There are currently no further details available.

ITALY
Regret no report received.

JAPAN
Tetanus
Tetanus was diagnosed in one non-vaccinated nonThoroughbred on 16 July 2017. The horse showed clinical signs of recumbency, paddling motion of the limbs and tetanic convulsions and was euthanased. Positive diagnosis was confirmed by Hokkaido Hidaka Livestock Hygiene Service Center.

MALAYSIA
Confirmed nothing to report.

NEW ZEALAND
Confirmed nothing to report.

SINGAPORE
Confirmed nothing to report.

SOUTH AFRICA
African Horse Sickness (AHS)
No cases of AHS occurred within the AHS controlled area or in the AHS infected zone of South Africa.

Arboviruses
Very few cases of arbovirus infection are detected during the July to September period. The University of Pretoria’s Emerging Vectorborne and Respiratory Virus Programme, Centre for Viral Zoonosis, Department of Medical Virology, have just completed an eight year study of WNV in horses, which has been accepted for publication. The study confirms that horses are highly sensitive sentinels for WNV and confirms the relationship between the number of WNV cases, mosquito vectors and increased rainfall. WNV lineage 2 is still the most commonly detected strain associated with neurological disease in horses (and humans) across the country.

Equine Herpes Virus-1 &-4 (EHV-1 &-4)
Sporadic cases of EHV-1 and EHV-4 were detected during the third quarter 2017. Three EHV-1 abortion/neonatal foal death cases were detected in the Robertson area of the Western Cape, two in aborted fetuses and one in a newborn foal that was born weak and died within four hours of birth. EHV-1 infection was also detected in Gauteng and in the Karoo in the Northern Cape (individual cases). A single case of EHV-4 infection was reported in Mpumalanga.

Equine Encephalosis
One sub-clinical case of equine encephalosis was detected in July as part of the AHS surveillance program in the AHS surveillance zone of South Africa, with the sample having been collected in June 2017.

Strangles (Streptococcus equi)
Strangles occurs sporadically in South Africa.

Piroplasmosis (B. caballi and T. equi)
Piroplasmosis has been detected throughout the third quarter 2017 from a number of Provinces in South Africa, including Gauteng, Limpopo, Mpumalanga, Western Cape and the Northern Cape.

SOUTH KOREA
Confirmed nothing to report.

SPAIN
Regret no report received.

SWEDEN
Confirmed nothing to report.

SWITZERLAND
Erlichiosis
One case of Erlichiosis was confirmed on 28 July 2017 with the positive diagnosis confirmed by blood smear.

Piroplasmosis
One case of piroplasmosis was confirmed on 4 July 2017 with the positive diagnosis confirmed by PCR.

Strangles (Streptococcus equi)
Strangles was confirmed in ten horses on two separate premises during the third quarter 2017 with the positive diagnoses confirmed by PCR.

TURKEY
Confirmed nothing to report.

UNITED ARAB EMIRATES (UAE)
Regret no report received.

UNITED KINGDOM
Please note that all UK cases and outbreaks have already been notified via interim reports during the third quarter and since. Strangles (Streptococcus equi) remains endemic in UK horses.

UNITED STATES OF AMERICA
Eastern Equine Encephalomyelitis (EEE)
Eastern equine encephalomyelitis was confirmed in 39 horses located in six states, many of them in Wisconsin.

Equine Herpes Virus Disease Syndromes
Equine Herpes Virus-1 and -4 (EHV-1 and -4) related respiratory disease was widespread in numerous states. EHV-1 was primarily implicated in causing respiratory illness in young foals. Four cases of EHV-1 abortion were diagnosed, each on separate premises. Two outbreaks of EHV-1 neurological disease were confirmed, both in the state of Virginia. The first outbreak involved two horses, one of which had to be euthanased. Four horses were affected in the second outbreak, two of which were euthanased.

Equine Influenza (EI)
One outbreak of EI was confirmed during the third quarter 2017.

Equine Infectious Anaemia (EIA)
Equine infectious anaemia was recorded in five states: Colorado (two cases), Illinois (one case), Kansas (three cases), North Carolina (one case) and Oklahoma (two cases).

Equine Neorickettsiosis
Multiple occurrences were recorded in Kentucky with the disease confirmed in 27 horses.

Equine Piroplasmosis
A number of cases of equine piroplasmosis were discovered involving several states and with one exception, an Andalusian, all were current or former Quarter Horse racehorses with confirmed or suspected iatrogenic transmission.

Proliferative Enteropathy
Infection with Lawsonia intracellularis was diagnosed based on agent detection in three foals in Kentucky.

Rabies
Single cases of rabies were reportedin Minnesota and North Carolina.

Rhodococcal Related Disease
Rhodococcus equi infection is endemic in the USA, with 27 cases diagnosed during the third quarter 2017.

Salmonellosis
A total of 10 cases of salmonellosis were confirmed in the third quarter 2017, five with serogroup B Salmonellae and five with serogroup C3 Salmonellae.

Strangles (Streptococcus equi)
Strangles is endemic in the USA, with the disease reported on at least 33 premises in 13 states. Multiple cases were recorded on affected premises in four states.

West Nile Encephalitis (WNE)
A total of 135 cases were diagnosed in 15 states in the third quarter 2017, with two thirds of the cases recorded in September 2017.

VENEZUELA
Regret no report received.

REGARDS
INTERNATIONAL COLLATING CENTRE